Question

Calculate ∆S if one mole of ideal gas is heated from 27°C to 127°C at
a) constant volume
b) constant pressure

Answer 1

ΔS=Q/ΔT

For constant volume,ΔS=nCvΔT/ΔT=nCv=Cv

For constant pressure,ΔS=nCpΔT/ΔT=nCp=Cp