When water of mass m and specific heat c is heated at constant pressure from absolute temperature T1 to absolute temperature T2, its change in entropy is what?
A)cm ln(T2/T1)
B)cm (T2/T1)
C)cm (T2 − T1)/T1
D)cm (T2 − T1)/T2
E)cm (T2 − T1)/(T2 + T1)

Question

Quizplus · Accepted Answer

The change in entropy (ΔS) when a substance is heated at constant pressure is given by the formula ΔS = mc ln(T2/T1), where m is the mass, c is the specific heat, and T1 and T2 are the initial and final temperatures, respectively.

When Water of Mass M and Specific Heat C Is