Thermodynamics

Question 1

the heat conduction depends on 3 factors. which?

Answer 1

1. temperature difference dT/dz
2. which material - properties of conduction “kappa”
3. length of material “H”

Question 2

Stefans law is based on 5 assumptions, which?

Answer 2

1. No thermal inertia / no storage
2. No internal heat source; q = 0
3. Know temperature on top of the ice; T_o
4. No oceanic heat flux; Q_w = 0
5. K “kappa” etc. are given constants

Question 3

What is equilibrium thickness? (and which assumptions do you make?)

Answer 3

Eq. thickness means that ice freezing during winter equals the melting during summer.

(Assumption: same climate over many years.)