Chapter 2 Equations Flashcards
1
Q
The Ideal Gas Law
A
PV = nRT
2
Q
First Law of Thermodynamics
A
Usys = -Usurr
U = q + w
3
Q
work
A
=- Pext(V2 – V1)
4
Q
Heat Flow
A
qp = -CPsurr(T2 - T1)
q = U + Pext(V2 - V1)
5
Q
Internal Energy
(using heat capacity)
A
ΔU = nCv,m(T2 – T1)
6
Q
Wexpansion
(Reversible process)
A
-nRT X ln(V2/V1)
7
Q
Wcompression
A
-nRTln(V1/V2)
8
Q
Enthaply
A
H ≡ U + PV, and ΔH = qp
ΔH = qv = Cv(T2 – T1)
ΔH = qp = Cp(T2 – T1)
9
Q
The Reversible Expansion and Compression of an Ideal Gas
A
ln(T2/T1) = -(γ -1)ln(V2/V1)
