試題詳解

44. There is a 1 kg gallium block and its melting point is around 30°C. What is the change of entropy when it was melted from solid to liquid at 30°C? (The fusion heat of gallium is Lf = 80.18 kJ/kg)
(A) 0
(B) 0.265 kJ/K
(C) 0.374 kJ/K
(D) 2.673 kJ/K
(E) 3.779 kJ/K