When water of mass m and specific heat c is heated from absolute temperature T1 to absolute temperature T2, its change in entropy is:
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 of water can be calculated using the formula ΔS = cm ln(T2/T1), where ΔS is the change in entropy, c is the specific heat, m is the mass, T1 is the initial absolute temperature, and T2 is the final absolute temperature. Therefore, the best choice is A.

When Water of Mass M and Specific Heat C Is