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Physics-Thermodynamics
Physics equations and topics for the MCAT
12
Physics
Post-Graduate
06/27/2020

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Cards

Term
Zeroth Law of Thermodynamics
Definition

If A is in thermal equilibrium with B and B is in thermal equilibrium with C then A and C are also in thermal equilibrium

Term
Linear Thermal Expansion Equation
Definition
ΔL = αLΔT
Term
Volumetric Thermal Expansion
Definition

ΔV = βVΔT

where β ≈ 3α

Term
Heat Transfer via Conduction
Definition
Direct transfer of energy via molecular collision
Term
Heat Transfer via Convection
Definition
The transfer of heat by the physical motion of a fluid
Term
Heat Transfer via Radiation
Definition
The transfer of energy by electromagnetic waves
Term
1st Law of Thermodynamics
Definition
[image] where Q is the heat transferred into the system and W is the work done by the system
Term
Heat Capacity
Definition

Q = mc∆T

with Q being in units of joules,cal, or Cal (kcal)

Term
Heat During Phase Change
Definition
q=mL
Term
Thermodynamic Processes
Definition

Isothermal: Q=W

Adiabatic: ∆U=-W

Isobaric: ∆U=Q-W

Isochoric/Isovolumetric: ∆U=Q

Term
2nd Law of Thermodynamics
Definition

If 2 objects are in thermal contact but not thermal equilibrium then the object with higher temperature will give off heat to the other object until they reach thermal equilibrium

- Energy is dispersed 

Term
Entropy Equation
Definition
∆S=Q/W
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