Important Formulas of Physical Chemistry. THE SOLID STATE. 1. Calculation of numer of particles / atoms / ions in a Unit Cell : 2. Type of Numerof Relationship UnitCell particles per between edge UnitCell length (a) and radius (r) of atom/ion Simplecubic 1 a = 2r Body centred cubic 2 a= 4 3 r Face centred cubic 4 a= 2 2 r 3.
Full Answer
How to prepare physical chemistry?
– Physical Chemistry Syllabus The first and foremost step before starting to prepare for this section is the knowledge of NEET Physical Chemistry syllabus. Candidates must understand the syllabus to be able to chalk out a plan. Take a look at the table below, which provides the syllabus of Physical Chemistry for NEET from Class 11 and 12.
What is list of Chemistry formulas?
- Physical chemistry formulas
- Organic chemistry formulas
- Inorganic chemistry formulas
What are the examples of Physical Chemistry?
The Atomic Scale
- The properties of matter at the atomic scale vary from element to element.
- However, some elements exhibit similar properties and are grouped together in the periodic table.
- Some examples of the properties of matter studied in physical chemistry at the atomic scale include atomic mass and atomic number.
What is the general formula in chemistry?
What is the general formula of triglycerides? The triglyceride molecule is a form of the chemical glycerol (tri=three molecules of fatty acid + glyceride=glycerol) that contains three fatty acids. To be absorbed, these parts are broken apart in the small intestine, and afterwards are reassembled with cholesterol to form chylomicrons.
What formulas are used in chemistry?
Common Equations Used in Chemistry. ... Calculation of density or molar mass of gas: d = ... coefficients in equation] ... Energy of an electron in the nth state in a hydrogen atom: En = -RH( ... Dipole moment in terms of charge (Q) and distance of separation (r) between. ... RT + C. ... Entropy change of heat flow at constant temperature: ∆S =More items...
What is P in physical chemistry?
partial pressure of a gas in a gaseous mixture p (or P), some form of energy of a substance (for chemistry enthalpy H is common), entropy of a substance S.
What is DW in physical chemistry?
Total work done in any change is the sum of little infinitesimal increments for an infinitesimal change dV. ع dw = ع - p. ext.
Is physics a physical chemistry?
Physical chemistry deals with the principles of physics involved in chemical interactions. It examines: How matter behaves on a molecular and atomic level. How chemical reactions occur.
What is FF in chemistry?
Synonyms. 7782-41-4. F. Fluorine.
Is Delta H and Q the same?
Q is the energy transfer due to thermal reactions such as heating water, cooking, etc. anywhere where there is a heat transfer. You can say that Q (Heat) is energy in transit. Enthalpy (Delta H), on the other hand, is the state of the system, the total heat content.
What is P Delta V?
For a gas, work is the product of the pressure (p) and the volume (V)during a change of volume. delta W = p * delta V.
What is PdV physics?
The term PdV comes from a Thermodynamic relation where the V of the system is changed with respect to Temperature(Entropy), leaving the Entropy(Temperature) of the system fixed. And the term VdP is the other way around.
What is PdV work in thermodynamics?
Consider a system consisting of a gas in a cylinder fitted with a piston. During the initial condition of the piston i.e., when the piston is at position (1), the pressure inside the cylinder is P1 and volume is V1. Let the gas expands as the piston moves to position (2).
Who is father of physical chemistry?
Wilhelm OstwaldWilhelm Ostwald: Founder of Physical Chemistry and Nobel Laureate 1909.
Is physical chemistry easy?
Physical chemistry is not so difficult comparatively if you are ok in maths…. And, the Inorganic Chemistry is easy in group chemistries but difficult in higher coordination compounds…. But, it is the interest that matters..
Is physical chemistry hard?
Physical Chemistry involves math. In some cases, it may draw upon calculus, making it essentially a physics thermodynamics course. If you are weak in math or just dislike it, this may be the hardest class for you. You need P-Chem for a chemistry degree.
How many potentials does each half reaction have?
Each half-reaction can only have one electric potential and are usually listed as either oxidation or reduction potentials in table; the signs of these values can be reversed to find the value for the opposite half reaction
How many liters is a mole of gas?
At STP, one mole of gas, behaving ideally, occupies the standard molar volume of 22.4 liters
What is intermediate in chemistry?
Intermediates are species that are products of one reaction and reactants of a later reaction in a chain. Balanced equation: aA + bB → cC + dD. Rate law: rate forward = k f [A] α [B] β, where α and β are the orders of each respective reactant and the sum of α + β is the overall reaction order.
Which column of the periodic table increases in acidity?
Hydrides increase in acidity on the periodic table, from left to right and top to bottom
Which direction does the atomic radius and metallic character increase?
Atomic radius and metallic character increase from right to left, top to bottom
Do gas molecules exert other than repulsive forces?
Gas molecules exert no forces other than repulsive forces due to collisions
Is a solution a homogeneous mixture?
A solution is a homogenous mixture of two or more compounds in a single phase
Why is it important to know the formulas of chemistry?
Preparing the Chemistry Formulae is necessary as they help you solve different chemical equations and reactions efficiently and fastly.
What is a reversible chemical reaction?
a reversible chemical reaction in which one reaction is an oxidation and the reverse is a reduction
What is the difference between organic and inorganic chemistry?
While organic chemistry is defined as the study of carbon-containing compounds and inorganic chemistry is the study of the remaining subset of compounds other than organic compounds , there is overlap between the two fields (such as organometallic compounds, which usually contain a metal or metalloid bonded directly to carbon).
What is the most common inorganic chemical used in the production of nylons, fibers, plastics, poly?
For example: Ammonia is a nitrogen source in fertilizer, and it is one of the major inorganic chemicals used in the production of nylons, fibers, plastics, polyurethanes (used in tough chemical-resistant coatings, adhesives, and foams), hydrazine (used in jet and rocket fuels), and explosives.
What is the titer of a solution?
a measured amount of a solution of unknown concentration is added to a known volume of a second solution until the reaction between them is just complete; the concentration of the unknown solution (the titer) can then be calculated
What is the chemical reaction in which an acid and a base interact with the formation of a salt?
a chemical reaction in which an acid and a base interact with the formation of a salt; with strong acids and bases the essential reaction is the combination of hydrogen ions with hydroxyl ions to form water
What is the principle of total energy?
the fundamental principle of physics that the total energy of an isolated system is constant despite internal changes
Atoms, Molecules, and Quantum Mechanics
- Avogadro’s number = 6.022 × 1023
- Cations are smaller than the original ions; anions are larger than the original ions
- Five periodic trends
- Percent yield = 100 × (actual yield/theoretical yield)
Gases, Kinetics, and Chemical Equilibrium
- Standard temperature and pressure, STP is 0°C or 273 K, and 1 atm
- Mean free path is the distance traveled by a gas molecule between collisions
- Kinetic molecular theory, characteristics of an ideal gas
- Ideal gas law: PV = nRT, universal gas constant = R = 0.08206 L atm/K mol = 8.314 J/K mol
Thermodynamics
- The system is the macroscopic body under study, and the surroundings are everything else
- Three types of systems
- Extensive properties are proportional to the size of the system
- Intensive properties are independent of the size of the system
Solutions
- A solution is a homogenous mixture of two or more compounds in a single phase
- The compound of which there is more is called the solvent, and the compound of which there is less is called the solute
- The ideal solution are solutions made from compounds that have similar properties
- Ideally, dilute solutions are solutions in which the solute molecules are completely separated …
- A solution is a homogenous mixture of two or more compounds in a single phase
- The compound of which there is more is called the solvent, and the compound of which there is less is called the solute
- The ideal solution are solutions made from compounds that have similar properties
- Ideally, dilute solutions are solutions in which the solute molecules are completely separated by solvent molecules so that they have no interaction with each other
Heat Capacity, Phase Changes, and Colligative Properties
- Heat capacity C is a measure of the energy change required to change the temperature of a substance
- Constant pressure capacity CP is greater than constant volume capacity CV
- q = CΔT
- Specific heat: q = mcΔT, c = specific heat of a substance
Acids and Bases
- An Arrhenius acid is anything that produces hydrogen ions in an aqueous solution, and an Arrhenius base is anything that produces hydroxide ions in aqueous solutions
- A Brønsted-Lowry acid is anything that donates a proton, and a Brønsted-Lowry base is anything that accepts a proton
- A Lewis acid is anything that accepts an electron pair, and a Lewis base is anything that dona…
- An Arrhenius acid is anything that produces hydrogen ions in an aqueous solution, and an Arrhenius base is anything that produces hydroxide ions in aqueous solutions
- A Brønsted-Lowry acid is anything that donates a proton, and a Brønsted-Lowry base is anything that accepts a proton
- A Lewis acid is anything that accepts an electron pair, and a Lewis base is anything that donates an electron pair
- pH = -log [H+]
Electrochemistry
- In a redox reaction, electrons are transferred from one atom to another
- Oxidation states
- The atom being reduced is also the oxidizing agent, and vice versa
- There is an electric potential E associated with any redox reaction
List of Chemical Formulas and Their Common Names with Chemical Compounds
- The below table covers the Chemical compounds and their formulas with their common names. These below-listed compounds and their formulas are regularly asked in the SSC exam or government exams. You can also download the free pdf given in this article to memorise the below-given list.
Chemistry Vocabulary
- 1. Absolute Temperature temperature measured on the absolute scale 2. Absolute Zero the lowest temperature theoretically attainable 3. Absorption a process in which one substance permeates another 4. Accuracy the quality of being near to the true value 5. Acid any of various water-soluble compounds having a sour taste 6. Activation Energy the energ...
Chemistry Definition
- Chemistry is the branch of science that deals with the properties, composition, and structure of elements and compounds, how they can change, and the energy that is released or absorbed when they change. What is Organic Chemistry? Organic chemistry is the study of the structure, properties, composition, reactions, and preparation of carbon-containing compounds, which incl…
Advantages of Referring to Chemistry Formula Sheet
- Anybody who wishes to brush up their skills in chemistry can look up to our Chemistry Formulas List. Get to know about the advantages of preparing from the Formulas of Chemistry. They are as under 1. Helps you cover the entire syllabus in a smart way. 2. Clarify your queries while solving chemical equations or reactions. 3. Arrive at the solution easily by employing the Chemistry For…