Applying the Entropy Balance: Closed SystemsA 2.64-kg

QUESTION:

A 2.64-kg copper part, initially at 400 K, is plunged into a tank containing 4 kg of liquid water, initially at 300 K. The copper part and water can be modeled as incompressible with specific heats \(0.385 \mathrm{\ kJ} / \mathrm{kg} \cdot \mathrm{K}\) and \(4.2 \mathrm{\ kJ} / \mathrm{kg} \cdot \mathrm{K}\), respectively. For the copper part and water as the system, determine (a) the final equilibrium temperature, in K, and (b) the amount of entropy produced within the tank, in kJ/K. Ignore heat transfer between the system and its surroundings.