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what is the specific heat of kno3

by Dayana Kuvalis Published 3 years ago Updated 2 years ago

The specific heat of the pure KNO 3 was also close to literature data [ 39] that reports specific heats in the range of temperature of solid state (260–390 °C) of 1.29–1.43 J/g °C and of 1.38–1.39 in the liquid state (in accordance with other works [ 40, 42 ]) and slightly lower with respect to the previous references [ 43, 44 ].

The specific heat of the pure KNO3 was also close to literature data [39] that reports specific heats in the range of temperature of solid state (260–390 °C) of 1.29–1.43 J/g °C and of 1.38–1.39 in the liquid state (in accordance with other works [40, 42]) and slightly lower with respect to the previous references [43, ...

Full Answer

Is KNO3 a solid liquid or gas?

The inner core is solid, the outer core is liquid, and the mantle solid/plastic. This is because of the relative melting points of the different layers (nickel–iron core, silicate crust and mantle) and the increase in temperature and pressure as depth increases. At the surface both nickel–iron alloys and silicates are sufficiently cool to be solid.

What is KNO3 used for?

Potassium nitrate is an inorganic salt which has a molecular KNO3 formula. This is a common form of nitrate which has been used for numerous uses as a component, including agricultural preservatives, fertilizers, tree stump removal, rocket propellants, which fireworks.

Is KNO3 aqueous or solid?

Potassium nitrate (KNO3) is an odorless crystalline solid that ranges in color from white to dirty grey. They are water-soluble, non-combustible compounds that speed up the combustion of combustible materials. It may explode when exposed to heat or fire for an extended period. In the fire, it emits toxic nitrogen oxides.

Is KNO3 soluble in water?

KNO3 is definitely soluble in water. Nitrogen molecules can absorb photons to generate excited-state molecules. Get answers by asking now. NaClO3 can be more soluble than KNO3 at different temperatures, but it is not seen that KNO3 is more soluble than NaClO3. A steel tank has a pressure of 1180 torr and is filled with 556 mL of O2.

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What is the code for potassium nitrate?

How much potassium cation is needed for osmotic pressure?

How are nitrates reduced?

What is a clinical evaluation of a patient with suspected nitrate exposure?

What is the most favorable course of action for a chemical?

Is potassium nitrate a solid?

Where are nitrates absorbed?

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What is heat of solution of KNO3?

The Enthalpy of solution for potassium nitrate KNO3 is +34.9kJ/mol.

What is the molar heat of KNO3?

34.89 kJ/mold. The molar enthalpy of solution ∆Hsol of KNO3 at 25°C is 34.89 kJ/mol.

What is the specific heat capacity of potassium?

0.75 J/g K.Specific heat of Potassium is 0.75 J/g K. Latent Heat of Fusion of Potassium is 2.334 kJ/mol.

What is specific specific heat?

The specific heat capacity is defined as the quantity of heat (J) absorbed per unit mass (kg) of the material when its temperature increases 1 K (or 1 °C), and its units are J/(kg K) or J/(kg °C).

What is the KSP of KNO3?

When 10.1 g of KNO3 is dissolved in enough water to make 25.0 mL of solution, the result is a saturated solution of KNO3. Determine the Ksp for KNO3....Hazards and Safety.1 / Temperature (K-1)ln Ksp(1 / 25+ 273) = 0.00336 (1 / 35+ 273) = 0.00325 (1 / 45+ 273) = 0.00314ln 2.4 = 0.88 ln 3.0 = 1.1 ln 3.7 = 1.3Jan 26, 2020

How do you calculate the solubility of KNO3?

The only way to determine the solubility of potassium nitrate is to do an experiment or interpolate from a solubility graph.

What is the specific heat capacity of K2SO4?

Based on this observation, calculate q for the water and ΔH° for the process, assuming that the heat absorbed by the salt is negligible. K2SO4(s) ----> 2K+(aq) + SO42-(aq) The specific heat of water is 4.184 J °C-1 g-1.

Who Discovered Potassium?

Humphry DavyPotassium / DiscovererSir Humphry Davy, 1st Baronet, PRS, MRIA, FGS was a British chemist and inventor from Cornwall who invented the Davy lamp and a very early form of arc lamp. Wikipedia

What is the specific heat of sand in JGC?

830 J/kg°CFor example, the specific heat of iron is 449 J/kg°C, sand is 830 J/kg°C, and oak timber is 2400 J/kg°C.

How do I calculate specific heat?

The specific heat capacity is the heat or energy required to change one unit mass of a substance of a constant volume by 1 °C. The formula is Cv = Q / (ΔT ⨉ m) .

How do you find specific heat capacity?

If you are looking for the specific heat capacity (C), you will need to isolate it by dividing both sides by mΔT . Example: 2.34×104 J of heat are added to 2.0 kg of an unknown metal to cause a temperature change of 90.0°C .

How do you calculate heat capacity?

To calculate heat capacity, use the formula: heat capacity = E / T, where E is the amount of heat energy supplied and T is the change in temperature. For example, if it takes 2,000 Joules of energy to heat up a block 5 degrees Celsius, the formula would look like: heat capacity = 2,000 Joules / 5 C.

Is potassium nitrate harmful to humans?

A number of health hazards can present potassium nitrate. It can trigger breathing issues when inhaled, including coughing and shortness of breath....

What contains potassium nitrate?

Potassium nitrate is a nitric acid crystalline potassium salt. Many products in households, agriculture, and industry use potassium nitrate. For so...

Is potassium nitrate safe in toothpaste?

There is often confusion between nitrates and nitrites. The FDA recognizes nitrates used in potassium nitrate as secure and efficient for use in an...

What are the dangers of potassium nitrate?

Contact can trigger irritation of the eyes and skin. Potassium nitrate respiration may irritate the nose and throat causing sneezing and coughing....

What is potassium nitrite used for?

In the production of heat transfer salts, potassium nitrite is used. Potassium nitrite as a food additive E249 is a sodium nitrite-like preservativ...

Is potassium nitrate harmful to humans?

Potassium nitrate when breathed in will impact you. * Touch can cause discomfort to the eyes and skin. * Potassium nitrate for breathing can irrita...

Is potassium nitrate a carcinogen?

Nither IARC nor the EPA have listed carcinogenicity nitrates. There are however several potential mechanisms that can metabolize nitrates to N-nitr...

What plants benefit from potassium?

Potassium grows good lawns by encouraging deep-rooted lush, robust stems. By supporting solid stems and well-developed flowers it benefits roses an...

SAFETY DATA SHEET - Fisher Sci

Potassium nitrate Revision Date 26-Dec-2021 9. Physical and chemical properties Physical State Solid Appearance White Odor Odorless Odor Threshold No information available pH 6-8 5% aq. solution Melting Point/Range 334 °C / 633.2 °F Boiling Point/Range 400 °C / 752 °F @ 760 mmHg Flash Point No information available Evaporation Rate Not applicable ...

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How many atoms of each element does potassium nitrate (KNO3) contain? A ...

Find an answer to your question How many atoms of each element does potassium nitrate (KNO3) contain? A. Potassium = 3 atom, Nitrogen = 3 atom, Oxygen = 3 atom…

What is the speciic heat capacity of KNO3? - Answers

What is the specific heat capacity of kno3. Which scientist used mathematical knowledge to calculate the exact measurement of the meter

What is KNO3 used for?

Potassium Nitrate (KNO3 ) Uses. It is used as a form of fertilizer as it contains all the macronutrients needed for the plants to grow. It is used as gunpowder in explosives such as bombs, grenades, etc. Used in the manufacturing and production of cigarettes. It is used extensively used in the preservation of hides.

What are the health risks of potassium nitrate?

Potassium Nitrate (KNO3 ) Health Hazards 1 Potential exposure – Potassium Nitrate is used in chemical analysis, as a food additive in fertilizers in medications as a vasodilator and as antidote for cyanide poisoning. 2 Short term exposure – Potassium nitrate can affect when breathed in. Contact can cause eye and skin burns. Breathing the dust or mist can irritate the nose, throat and lungs and may cause coughing with phlegm. Higher exposures can cause pulmonary edema, a medical emergency that can be delayed for several hours. This can cause death. 3 Long term exposure – Repeated skin contact causes dermatitis, drying and cracking. May cause lung irritation, bronchitis may develop. There is limited evidence that potassium nitrite may damage the developing fetus. 4 Medical surveillance – If symptoms develop or overexposure is suspected, the following may be useful, blood test for methemoglobin. Lung function tests. Consider chest X-ray after acute overexposure. 5 Potassium nitrate is an inorganic salt which has a molecular KNO3 formula. This is a common form of nitrate which has been used for numerous uses as a component, including agricultural preservatives, fertilizers, tree stump removal, rocket propellants, which fireworks. 6 Potassium nitrate is a common active ingredient that exerts an anti-sensitive effect in toothpaste. It offers enhanced protection against the painful sensitivity of the teeth to ice, sun, acids, sweets or touch.

What is potassium nitrate used for?

Potassium nitrate is used in gunpowder, fertilizers and in the laboratory preparation of nitric acid. Potassium nitrate is the most common desensitizing agent in over-the-counter dentifrices. At a concentration of 5%, potassium nitrate in conjunction with sodium or monofluorophosphate fluoride significantly reduces symptoms within 2 weeks ...

What is the name of the additive used in heat transfer salts?

In the production of heat transfer salts, potassium nitrite is used. Potassium nitrite as a food additive E249 is a sodium nitrite-like preservative and is approved for use in the EU, USA, Australia and New Zealand.

Can potassium nitrate cause pulmonary edema?

Breathing the dust or mist can irritate the nose, throat and lungs and may cause coughing with phlegm. Higher exposures can cause pulmonary edema, a medical emergency that can be delayed for several hours.

Is potassium nitrate an alkali metal?

Other acids make other types of salts. Potassium nitrate contains potassium (a soft, light, and silver metal), oxygen, and nitrogen (a colourless and odourless gas). It is an alkali metal nitrate because it is an ionic salt of potassium ions K + ions and nitrate ions NO 3−. It is solid white or sometimes white to dirty grey in colour.

Is potassium nitrate dangerous?

Potassium Nitrate (KNO3 ) Health Hazards. Potential exposure – Potassium Nitrate is used in chemical analysis, as a food additive in fertilizers in medications as a vasodilator and as antidote for cyanide poisoning. Short term exposure – Potassium nitrate can affect when breathed in. Contact can cause eye and skin burns.

How to make potassium nitrate without ammonia?

An alternative way of producing potassium nitrate without a by-product of ammonia is to combine ammonium nitrate, found in instant ice packs, and potassium chloride, easily obtained as a sodium-free salt substitute . Potassium nitrate can also be produced by neutralizing nitric acid with potassium hydroxide.

What is the formula for potassium nitrate?

Potassium nitrate is a chemical compound with the chemical formula K N O. 3. It is an ionic salt of potassium ions K + and nitrate ions NO 3−, and is therefore an alkali metal nitrate. It occurs in nature as a mineral, niter (or nitre in the UK). It is a source of nitrogen, and nitrogen was named after niter.

What was the name of the process that produced potassium nitrate?

From 1903 until the World War I era, potassium nitrate for black powder and fertilizer was produced on an industrial scale from nitric acid produced using the Birkeland–Eyde process, which used an electric arc to oxidize nitrogen from the air. During World War I the newly industrialized Haber process (1913) was combined with the Ostwald process after 1915, allowing Germany to produce nitric acid for the war after being cut off from its supplies of mineral sodium nitrates from Chile (see nitratite ).

What is potassium nitrate used for?

Major uses of potassium nitrate are in fertilizers, tree stump removal, rocket propellants and fireworks. It is one of the major constituents of gunpowder (black powder). In processed meats, potassium nitrate reacts with hemoglobin and myoglobin generating a blue color.

Why is potassium nitrate called potassium nitrate?

Hebrew and Egyptian words for it had the consonants n-t-r, indicating likely cognation in the Greek nitron , which was Latinised to nitrum or nitrium. Thence Old French had niter and Middle English nitre. By the 15th century, Europeans referred to it as saltpetre and later as nitrate of potash, as the chemistry of the compound was more fully understood.

Why is potassium nitrate discontinued?

The use of potassium nitrate has been mostly discontinued because of slow and inconsistent results compared to sodium nitrite compounds such as "Prague powder" or pink " curing salt ".

Where are sodium and potassium nitrate salts stored?

Sodium and potassium nitrate salts are stored in a molten state with the solar energy collected by the heliostats at the Gemasolar Thermosolar Plant. Ternary salts, with the addition of calcium nitrate or lithium nitrate, have been found to improve the heat storage capacity in the molten salts.

Chem

In a 1.0x10^-6 M solution of HNO3 (aq) at 25 degrees C, identify the relative molar amounts of species from most to least. HNO3 H3O+ H2O OH- NO3-

CHEMISTRY

HOW CAN U TELL IF HNO3 +KNO3 IS A BUFFER SOLUTION A buffer solution must contain a weak acid and its conjugate base OR a weak base and its conjugate acid. HNO3 is a strong base and KNO3 is the salt of a strong base (KOH) and a

Chemistry

I need help with this question Which would have a higher boiling point? a.1.0 M KNO3 b.1.5 M KNO3 c.0.75M KNO3 d.2.0M KNO3

Chemistry

NH3 (g) + 2O2 (g) = HNO3 (aq) + H2O (l) How do I calculate the oxidation states of Nitrogen and figure out if it is reduced, oxidized or neither? My answer is below. I am not sure if I am figuring it right. Please advise. NH3 (g) +

Chemistry

Calculate the molarity of the following solutions: 5.0g of KOH in 4.0L of KOH solution I went from grams of KOH to moles of KOH to molarity but still got the wrong answer... 5.0g KOH X 1 mol KOH/56.108g KOH = 5.0 mol

chem

For the reaction 3NO2 + H2O u0001 2HNO3 + NO, how many grams of HNO3 can form when 1.00 g of NO2 and 2.25 g of H2O are allowed to react? This is a limiting reagent problem. 1. Write the equation. You have done that and it is balanced.

Chemistry

The balanced net ionic equation for the neutralization reaction involving equal molar amounts of HNO3 and KOH is ________. Express your answer as a chemical equation. Identify all of the phases in your answer. I thought it was

What is the code for potassium nitrate?

For potassium nitrate (USEPA/OPP Pesticide Code: 076103) ACTIVE products with label matches. /SRP: Registered for use in the U.S. but approved pesticide uses may change periodically and so federal, state and local authorities must be consulted for currently approved uses./

How much potassium cation is needed for osmotic pressure?

The potassium cation is an essential electrolyte that is important for the maintenance of intracellular osmotic pressure and for the maintenance of cell membrane potential, in particular, the potential of electrically excitable tissues. It is a regular component of the diet and is particularly abundant in fruit and vegetables. The recommended daily intake varies from 350-1275 mg in children to 1875 and 5625 mg in adults. In the United Kingdom, the recommended intake is 3.5 g/day for healthy adults. Potassium ions are believed to disturb the synapse between nerve cells, thus decreasing nerve excitation and the associated pain. Potassium nitrates are ignitable fumigants also utilized as rodenticides and insecticides. They are added to other pesticide active ingredients ( sulfur and carbon) and placed into fumigant gas cartridges, designed to be ignited and placed in pest-infested areas. The activated cartridge bombs release toxic gases which are lethal to select rodents, skunks, coyotes, and wasps. Potassium ions have demonstrated in animal studies to act directly on the nerves and to reduce sensory activity. Tooth hypersensitivity can be relieved by inactivating the intra-dental nerve and inhibiting neural transmission, using suitable medications. It has been found that potassium -to- sodium intake ratios are strongly related to cardiovascular disease risk than either nutrient alone. The data describing this relationship warrants further research for various target tissue endpoints.

How are nitrates reduced?

Nitrates are reduced to nitrites by the bacteria in saliva and the gastrointestinal system. The in vivo reduction of nitrates to nitrites depends on conditions that are subject to much variations such the volume and species of microflora present in the saliva/gastrointestinal tract, and stomach pH. Gastric pH is higher in infants younger than 6 months of age and during certain gastrointestinal tract infections, thereby favoring the reduction of nitrates. Nitrate is metabolized to a small extent. The biotransformation of potassium nitrate consists of nitrate reduction, nitrite formation, nitrite reoxidation to nitrate, and formation of methemoglobin or NO, in a dynamic equilibrium,,.

What is a clinical evaluation of a patient with suspected nitrate exposure?

Clinical Evaluation: History. Evaluation of a patient with suspected nitrate / nitrite exposure includes a complete medical history and physical examination. Clues to potential exposure are often obtained by reviewing the following items with the patient or family: location of home (urban, suburban, or rural); drinking water source and supply (if well water: depth, location, type of well construction, and frequency of microbiologic and nitrate testing); surrounding activities (agricultural or industrial) and proximity to drinking- water source; type of sewer system (municipal or septic) and proximity to drinking water source; recent flooding; occupations, avocations, and hobbies of family members; nutritional status (for infants: type of formula, feeding regimen, and source of dilution water ); family history, including recent use of medications by infant and mother; and history of recent gastroenteritis with vomiting or diarrhea. /Nitrates and Nitrites/

What is the most favorable course of action for a chemical?

SRP: The most favorable course of action is to use an alternative chemical product with less inherent propensity for occupational exposure or environmental contamination. Recycle any unused portion of the material for its approved use or return it to the manufacturer or supplier. Ultimate disposal of the chemical must consider: the material's impact on air quality; potential migration in soil or water; effects on animal, aquatic, and plant life; and conformance with environmental and public health regulations.

Is potassium nitrate a solid?

Potassium nitrate appears as a white to dirty gray crystalline solid. Water soluble. Noncombustible, but accelerates the burning of combustible materials. If large quantities are involved in fire or the combustible material is finely divided an explosion may result. May explode under prolonged exposure to heat or fire. Toxic oxides of nitrogen are produced in fires. Used in solid propellants, explosives, fertilizers.

Where are nitrates absorbed?

Nitrates are absorbed into the general blood circulation and are transported across the body. Radioactive tracer experiments have demonstrated that nitrates are distributed evenly among body organs, and their rate of distribution depends on blood flow.

image

Overview

Potassium nitrate is a chemical compound with the chemical formula KNO 3. It is an ionic salt of potassium ions K and nitrate ions NO3 , and is therefore an alkali metal nitrate. It occurs in nature as a mineral, niter (or nitre in the UK). It is a source of nitrogen, and nitrogen was named after niter. Potassium nitrate is one of several nitrogen-containing compounds collectively referred to as saltpetre …

Properties

Potassium nitrate has an orthorhombic crystal structure at room temperature, which transforms to a trigonal system at 129 °C (264 °F).
Potassium nitrate is moderately soluble in water, but its solubility increases with temperature. The aqueous solution is almost neutral, exhibiting pH 6.2 at 14 °C (57 °F) for a 10% solution of commercial powder. It is not very hygroscopic, absorbing about 0.03% water in 80% relative humi…

History of production

In Ancient India, saltpeter manufacturers formed the Nuniya caste. Saltpeter finds mention in Kautilya's Arthashastra (compiled 300BC - 300AD), which mentions using its poisonous smoke as a weapon of war, although its use for propulsion did not appear until medieval times.
A purification process for potassium nitrate was outlined in 1270 by the chemi…

Production

Potassium nitrate can be made by combining ammonium nitrate and potassium hydroxide.
NH4NO3 (aq) + KOH (aq) → NH3 (g) + KNO3 (aq) + H2O (l)
An alternative way of producing potassium nitrate without a by-product of ammonia is to combine ammonium nitrate, found in instant ice packs, and potassium chloride, easily obtained as a sodium-free salt substitute.

Uses

Potassium nitrate has a wide variety of uses, largely as a source of nitrate.
Historically, nitric acid was produced by combining sulfuric acid with nitrates such as saltpeter. In modern times this is reversed: nitrates are produced from nitric acid produced via the Ostwald process.
The most famous use of potassium nitrate is probably as the oxidizer in blackp…

Etymology

Potassium nitrate, because of its early and global use and production, has many names. Hebrew and Egyptian words for it had the consonants n-t-r, indicating likely cognation in the Greek nitron, which was Latinised to nitrum or nitrium. Thence Old French had niter and Middle English nitre. By the 15th century, Europeans referred to it as saltpetre, specifically Indian saltpetre (sodium nitrate is chile saltpetre) and later as nitrate of potash, as the chemistry of the compound was more full…

In folklore and popular culture

Potassium nitrate was once thought to induce impotence, and is still rumored to be in institutional food (such as military fare) as an anaphrodisiac; however, there is no scientific evidence for such properties.
In Bank Shot, El (Joanna Cassidy) propositions Walter Ballantine (George C. Scott), who tells her that he has been fed saltpeter in prison. "You know why they feed you saltpeter in prison?" Ballan…

See also

• History of gunpowder
• Humberstone and Santa Laura Saltpeter Works
• Niter, a mineral form of potassium nitrate
• Nitrocellulose

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        Metadata
        Bindings
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        • 19. Route binding:39
        • 20. /vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php:167
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        Bindings
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        Metadata
        Bindings
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        Backtrace
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        • 17. /vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
        • 18. /vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:45
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        370μs/vendor/outl1ne/nova-menu-builder/src/Models/Menu.php:35receivinghelpdeskask
        Metadata
        Bindings
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        • 19. /vendor/outl1ne/nova-menu-builder/src/Models/Menu.php:35
        • 20. /vendor/outl1ne/nova-menu-builder/src/helpers.php:33
        • 22. /vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
        • 23. /vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:45
        • 24. /vendor/laravel/framework/src/Illuminate/Routing/Route.php:261
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        480μs/vendor/outl1ne/nova-menu-builder/src/Models/Menu.php:35receivinghelpdeskask
        Metadata
        Backtrace
        • 24. /vendor/outl1ne/nova-menu-builder/src/Models/Menu.php:35
        • 25. /vendor/outl1ne/nova-menu-builder/src/helpers.php:33
        • 27. /vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
        • 28. /vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:45
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        Metadata
        Bindings
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        • 15. /app/View/Composers/SidebarView.php:12
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