25.Find the change in the entropy in the following process 100 gm of ice at 0°C melts when dropped in a bucket of water at 50°C (Assume temperature of water does not change)
(a) – 4.5 cal/K (b) + 4.5 cal/K
(c) +5.4 cal/K (d) – 5.4 cal/K
Answer-b
(15)