1 Use the entropy principle to derive the Clausius statement of the second law.\ 2 Find the entropy change that occurs when

2.0kg

of water at

90\\\\deg C

is mixed with\

3.0kg

of water at

20\\\\deg C

.

Use the entropy principle to derive the Clausius statement of the second law. Find the entropy change that occurs when 2.0kg of water at 90C is mixed with 3.0kg of water at 20C