Homework Statement
By applying the first law to a quasi static process, show that the entropy can be expressed as
S = (16σ/3c) VT3
Homework Equations
U = 4(σ/c) VT4
PV = 1/3 U[/B]The Attempt at a Solution
I know I should be using
dS = dQ/T but it's unclear to me how to use this unless I...