Thermodynamics Flashcards
1
Q
T(K)=?
A
T(K)=T(C)+273
2
Q
ΔL=?
ΔV=?
A
ΔL=αLoΔT
ΔV=βVoΔT
3
Q
Vrms=?
A
Vrms=sqrt(3RT/M)
where M=m/n
4
Q
Kavg=?
A
Kavg=(3/2)(kb)T
where kb=R/Na (Boltzmann constant)
5
Q
P=?(Pressure)
A
P=F/A
5
Q
PV=?
A
PV=nRT
where R=8,31
6
Q
Rate of heat transfer,Q/Δt=?
A
Q/Δt=(kAΔT)/L where k is the thermal conductivity
7
Q
Q=?
A
Q=mcΔT or mL
9
Q
Conduction?
Comvection?
Radiation?
A
Solids
Fluids
Light
10
Q
e=?(Efficiency)
A
e=|Wnet/QH| where Qh is the heat added and W=QH-QC where QC is the exhaust heat
10
Q
Change in U and W?
Thermodynamics
A
+ΔU–>+ΔT
-ΔU–>-ΔT
ΔU=0–>ΔT=0
+W–>-ΔV
-W–>ΔV
11
Q
Laws of thermodynamics?
A
1) ΔU=Q+W
2) Entropy cannot decrease.
