How many kW to heat water calculator?
Typically, a hot water heater that uses a tank will run for three to five hours per day. So, a 4,000-watt heater used for three hours a day at $.10 per kWh will cost $1.20 per day, about $36.50 per month, or $438 per year. How Much Gas Does a Hot Water Heater Use?
How do you calculate the density of water?
Procedure
- Find the mass of an empty graduated cylinder. ...
- Pour 100 mL of water into the graduated cylinder. ...
- Weigh the graduated cylinder with the water in it. ...
- Find the mass of only the water by subtracting the mass of the empty graduated cylinder. ...
- Use the mass and volume of the water to calculate density. ...
How is the density of water calculated at STP?
Water facts
- Density of pure water is a constant at a certain temperature not depending on sample.
- The density of water varies according to temperature and the degree of purity.
- At 4 degrees Celsius pure water has a density of 1g/mL or 1kg/L and a specific gravity of 1.
- Freezing water expands over 9% by volume and ice floats on water because it is lighter.
How to determine conversion value?
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How do you convert density to kg L?
ρ (rho) = density, m = mass, V = volume. The SI unit of density is kg/m3. Water of 4 °C is the reference ρ = 1000 kg/m3 = 1 kg/dm3 = 1 kg/l or 1 g/cm3 = 1 g/ml.
How do you convert density?
0:142:12There are 1000 grams in a kilogram. So if you wanted to convert grams per centimeter cubed intoMoreThere are 1000 grams in a kilogram. So if you wanted to convert grams per centimeter cubed into kilograms per meter cubed. You would need to divide by a thousand and divided by a million.
How do you convert density to pounds per gallon?
The density of water at 4 degrees Celsius is 8.345 lbs/U.S. gal. Multiply the specific gravity of any solid or liquid by this number to get the density in pounds per U.S. gallon.
How do you convert density to ML?
4:435:41Now we're going to use the density to convert from grams to milliliters. So a density of 1.3 gramsMoreNow we're going to use the density to convert from grams to milliliters. So a density of 1.3 grams per milliliter means that a volume of 1 milliliter has a mass of 1.3 grams.
What is the density of water?
997 kg/m³Water / Density
How do you convert density to liters?
To convert from grams to liters using density, divide the mass (m) in grams (g) by the density (ρ) in grams per cubic centimeter (g/cm3). Use the formula for volume. The answer will be in cm3, and 1 cm3 = 1 milliliter = 0.001 liters. Use this to complete the conversion.
How do you convert density to unit weight?
Multiply the density by the acceleration of gravity (9.81) to calculate the specific weight. In our example, the specific weight is 840 x 9.81 = 8,240.4. Measure or obtain elsewhere the volume of the substance.
How many pounds is 50 gallons of water?
How Much Does a Gallon of Water Weigh?Temperature ( °F / °C )Weight of One Gallon of WaterWeight of Five Gallons of Water40°/4.4°8.345321 lbs41.726605 lbs50°/10°8.343318 lbs41.71659 lbs60°/15.6°8.337643 lbs41.688215 lbs70°/21°8.328881 lbs41.64405 lbs5 more rows
What is the density of water in LB in 3?
What Is the Density of Water?UnitWater DensityDensity of water g/cm31 g/cm3Density of water g/mL1 g/mLDensity of water kg/m31000 kg/m3Density of water lb/ft362.4 lbs/ft3Jan 17, 2020
How do you convert density to g ml?
In order to convert density to grams, you have to put the mass on one side of the equation, and the density and the volume on the other. Therefore, d * v = m. Multiply the density by the volume. Using the example in step 1, you would multiply 2 g/mL by 4mL.
What is 1 gram of water in ml?
Converting between ml and grams for water is a simple 1:1 conversion process. This is because one gram of water equals exactly one milliliter. For other ingredients, the density of the ingredient should be factored in. As an example, 1ml of milk measures around 1.04g and 1ml of cooking oil measures around 0.92g.
How do I calculate the density of a liquid?
The molecules of different liquids have different size and mass. The mass and size of the molecules in a liquid and how closely they are packed together determine the density of the liquid. Just like a solid, the density of a liquid equals the mass of the liquid divided by its volume; D = m/v.
Why is ocean water dense?
Ocean water is more dense because of the salt in it. Density of ocean water at the sea surface is about 1027 kg/m 3. There are two main factors that make ocean water more or less dense than about 1027 kg/m 3. The first is the temperature of the water and the other us the salinity of the water. Ocean water gets more dense as temperature goes down.
Which ocean layer has the most dense water?
The deep ocean is layered with the most dense water on bottom and the lightest water on top. Circulation in the depths of the ocean is horizontal, a result of deviations in density in constrast to surface circulation which is a product of surface winds.
Does temperature affect the density of water?
However, temperature has a greater effect on the density of water than does salinity. Hence, a layer of water (pycnocline) with higher salinity can actual float on top of water with lower salinity if the layer with higher salinity is quite a bit warmer than the lower salinity layer.
Can you measure density of ocean water?
The density of ocean water is rarely measured directly. If you wanted to measure the density of ocean water but did not have the expensive equipment to do it directly, you would have to collect a sample of sea water and bring it back to a controlled environment to be measured.
Does salinity increase the density of sea water?
So, the colder the water, the more dense it is. Increasing salinity also increases the density of sea water. Less dense water floats on top of more dense water. Given two layers of water with the same salinity, the warmer water will float on top of the colder water.
Water conversion substances
'Water Density List' figures are from simetric.co.uk - copyright © Roger Walker. Note that converting between units of weight and volume require a density figure. You can learn how to convert from volume to weight in this article .
Popular individual converters
If you have any suggestions for this water conversion tool, or have any additional water density figures that you wish to be included, please contact me .
Calculator Use
Convert among mass density values along with mass concentration values (mass divided by volume).
How to Convert Units of Density
Conversions are performed by using a conversion factor. By knowing the conversion factor, converting between units can become a simple multiplication problem:
How much pressure does water have at 1 km?
This means that at a depth of 1 km, the water pressure is approximately 100 atmospheres or 101.3 bar. Therefore, as the pressure increases (at deeper depths of the ocean), the water is slightly compressed and the water density increases.
What happens to the temperature of water as the temperature of the water rises?
At a molecular level, as the temperature of the water rises, or in other words, as the kinetic energy of the molecules increase, the increase in molecular movement and collisions means that on average, molecules are positioned further apart, resulting in an increase in volume per unit mass.
Why are water molecules dipoles?
Because of the geometry of water molecules, they are essentially dipoles with “positive and a negative ends”. The positive Hydrogen ends of the water molecules are attracted to the negatively charged Cl ions, and the positive oxygen ends are attracted to the positively charged Na ions.
What happens when salt dissolves in water?
When salt (sodium chloride or NaCl) dissolves in water, there is a significant increase in mass of the solution due to the relatively higher molecular mass of the dissolved ions Na (22 g/mol) and Cl (35.5g/mol) when compared to water or H 2 O (20 g/mol).
Is water compressible at high pressures?
The reality is that water is compressible, albeit a very small amount, and only noticeably so at high pressures. In the context of ocean water density, water pressure increases with depth at a rate of 1 atmosphere for every 10.06 metres of descent [2].
Is water pressure incompressible?
Water Pressure and Density. In many cases, water can be assumed to be incompressible. This is particularly useful in simplifying calculations or analyses related, but not “sensitive”, to water density. On the other hand, oceanographers require density measurements to be accurate to the fifth decimal place [1].
What is the unit of density?
That is very small for solids and liquids but greater for gases. The SI unit for density is kilograms per cubic meter (kg/m³).
What is density in science?
Density, or the volumetric mass density, of a substance is its mass per unit volume. Its symbol is ρ (the lower case Greek letter rho). In some cases, density is defined as its weight per unit volume, such as the United States oil and gas industry - that quantity is more specifically called specific weight.