For an irreversible process: S2 - S1 > ∫12 dQ/T
In the case of heat transfer dQ between object with T1 to object with T2, T1 > T2
ΔS in Joules/K is known But for evaluating ∫12 dQ/T = ln dQ/T - ln dQ/T . d/Q is known but what values for T in this case ?
Object 1 & 2 have Temperatures before heat transfer and different temperature after
In the case of heat transfer dQ between object with T1 to object with T2, T1 > T2
ΔS in Joules/K is known But for evaluating ∫12 dQ/T = ln dQ/T - ln dQ/T . d/Q is known but what values for T in this case ?
Object 1 & 2 have Temperatures before heat transfer and different temperature after