A container of water begins with a heat capacity of 500J/K (constant) and a temperature of 70?C. It cools in a room at 10?C until it too reaches that temperature; the temperature of the room does not change.
(a) What is the change in the entropy of the room during the cooling?
(b) What is the change in the entropy of the water?
(c) What is the net change in the entropy of the Universe? Does it obey the Second Law?