1st Law of Thermodynamics Flashcards
1
Q
Diathermal Definition
A
Perfect Heat Transmission
2
Q
Adiabatic Definition
A
No heat in or out
3
Q
Isobar definition
A
Constant Pressure
4
Q
Isochore Definition
A
Constant Volume
5
Q
Isotherm Definition
A
Constant temperature
6
Q
1st Law of thermodynamics equation
A
- ΔU=Q −W
- ΔU is the change in internal energy
- Q is the heat put into the system
- W is the work done by the system
7
Q
Work Done by an Ideal gas
A
W= ∫p dV
8
Q
Isothermal Processes
A
- ΔT = 0
- ΔU = 0
- pV = constant
- Q = W= nRT ∫ dV/V
9
Q
Adiabatic Processes
A
- TV^(γ-1) = constant
- pV^γ = constant
- Q = 0
- W=−ΔU
- W = nCv(ΔT)
10
Q
Isochoric Processes
A
- ΔV = 0
- W = 0
- Q = ΔU = nC_v ΔT
11
Q
Isobaric Processes
A
- ΔP = 0
- W = pΔV
