Thermal Dynamics Formulas Flashcards
1
Q
joules
A
J= N*M
m=mass n=newtons
2
Q
heat energy
A
Q=mc Δt
Q=heat energy m=mass c=heat capacity
Δ=delta, change in t=temperature
3
Q
Δt
A
Δt= Tf - Ti
Tf= temperature final Ti=temperature initial
4
Q
thermal equilibrium
A
Q1 + Q2 = 0 or Q1 = -Q2
Q1= heat energy of object 1
5
Q
phase change
A
Q=m*l
l=latent heat
6
Q
Stefan-Boltzmann Law
A
Phot/Pcold = (Thot/Tcold )^4
P=t^4
p=power T=temperature
7
Q
Wien’s Law
A
λmax T= constant
constant=2.910^-3 mk (metre-degree kelvin)
T=temperature
8
Q
internal energy
A
ΔU=Q+W
9
Q
mega joules
A
1 MJ = 1,000,000
10
Q
kilo joules
A
1 KJ = 1,000
