Thermal Properties of Matter Flashcards
1
Q
Ideal Gas Equation
A
pV = nRT
2
Q
Isothermal Definition
A
Constant Temperature
3
Q
Van der Waals Equation Changes
A
- P = P + (an^2)/(V^2)
- V = V - nb
- n is number of moles
- b is the co-volume - volume of 1 molecule
- a is a constant
4
Q
Van der Waals Assumption Changes
A
- Acknowledges gas molecules have volume
- Acknowledges gas molecules exert attractive forces
5
Q
Kinetic Ideal Gas Equation
A
- pV = (1/3)(Nmv^2)
- p is the pressure
- V is the volume
- N is the number of number of molecules
- m is mass of one molecule
- v is the rms speed
6
Q
Kinetic Energy of a gas
A
- E = (3/2)(kBT)
- kB is the boltzmann constant
- T is the temperature
7
Q
Maxwell Boltzmann Distribution
A
- Most probable speed
- Average speed
- RMS speed
- Temperature Increases: curve becomes flatter
8
Q
Molar Heat Capacity Equation (Cp & Cv)
A
C = (1/n)(dQ/dT)
9
Q
Molar Heat Capacity at Constant Volume for Monatomic (Translation)
A
C = 3R/2
10
Q
Molar Heat Capacity at Constant Volume for Diatomic (Rotation)
A
C = 5R/2
11
Q
Molar Heat Capacity at Constant Volume for Diatomic (Vibration)
A
C = 7R/2
12
Q
Molar Heat Capacity at Constant Volume and Pressure Relation
A
- Cp = Cv + R
- γ=Cp/Cv