- Calculate the entropy change of the universe as a result of the following processes: (a) A copper block of 0.4 kg mass and with heat capacity at constant pressure of 150 J/K at 100°C is placed in a...

Extracted text: - Calculate the entropy change of the universe as a result of the following processes: (a) A copper block of 0.4 kg mass and with heat capacity at constant pressure of 150 J/K at 100°C is placed in a lake at 10°C. (b) The same block at 10°C is dropped from a height of 100 m into the lake. (c) Two such blocks at 100°C and 0°C are joined together.