Thermodynamics and Statistical Mechanics: Essentials Flashcards Preview

Physics GRE Formulas > Thermodynamics and Statistical Mechanics: Essentials > Flashcards

Flashcards in Thermodynamics and Statistical Mechanics: Essentials Deck (25)
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1
Q

What is the zeroth Law of Thermodynamics?

A

Two systems in thermal equilibrium with a third system must be in thermal equilibrium with one another.

2
Q

Conversion from Celcius to Kelvin

A
3
Q

Heat formula

A
4
Q

Stefan-Boltzmann Law

A
5
Q

Ideal Gas Equation

A
6
Q

Average kinetic energy at a given temperature with fixed degrees of freedom for particles

A
7
Q

Heat capacities for an ideal gas at constant pressure and constant volume

A
8
Q

Work done by an ideal gas

A
9
Q

First Law of Thermodynamics

A
10
Q

Adiabatic process

A

No heat flow in or out of the system

11
Q

Isochoric process

A

No change in volume

12
Q

Isobaric process

A

No change in pressure

13
Q

Constant in adiabatic processes

A
14
Q

Efficiency of a heat engine

A
15
Q

The second law of thermodynamics

A

No heat engine has perfect efficiency, OR, it is impossible for any process to have as its sole result the transfer of heat from a cooler to a hotter body.

16
Q

Canonical ensemble

A

All possible states of a system with the same particle number (N), volume (V), temperature (T)

17
Q

Definition of beta (used for thermodynamics and statistical mechanics equations)

A
18
Q

Discrete states partition function

A
19
Q

Probability of being found in state i in a system with discrete states

A
20
Q

Entropy definition (Boltzmann)

A
21
Q

Non-Boltzmann entropy definition

A
22
Q

Monoatomic ideal gas entropy

A
23
Q

Thermodynamic definition of gamma

A
24
Q

Thermodynamic gamma in terms of degrees of freedom

A
25
Q

3rd Law of Thermodynamics

A

The entropy of a perfect crystal at absolute zero is exactly zero.