815.6 A new concept: entropy AS=nc, -+nRIn (b) Melting or boiling a mass m (c) Freezing or condensation of a mass m: o mL 4S T 815.6 A new concept: entropy (d)warming or cooling solid or liquid of mass m f do AS 入 rT mcdT =mc ln (e)Heat transfer to a reservoir at temperature Tc 4S= (f Heat transfer from a reservoir at temperature TH17 i f i f V V V nR T T ∆S = nc ln + ln (b) Melting or boiling a mass m: T mL T Q ∆S = = T mL T Q ∆S = = − (c) Freezing or condensation of a mass m: §15.6 A new concept: entropy (d) Warming or cooling solid or liquid of mass m i f T T f i T T mc T mc T T Q S f i ln d d = = = ∫ ∫ ∆ (e) Heat transfer to a reservoir at temperature TC TC Q ∆S = (f) Heat transfer from a reservoir at temperature TH TH Q ∆S = − §15.6 A new concept: entropy