A 0.5 kg block of copper with a temperature of 75 degrees C is dropped into an insulated container of water (2 kg) which is at 30 degrees C.
C(H20) = 4180 (J/kg) * K
C(Cu) = 386 (J/kg) * K

(a) What is the final temperature?
(b) What is the change in entropy for the water, copper and the net entropy change?


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