The blocks of aluminum, weighting 2 kg and 3 kg, with initial temperature 300 K and 540 k, are brought together, insulated and allowed to reach equilibrium. Assuming a constant specific heat C_p = 0.90 KJ/Kg K calculate. The final temperature (K) (approximate answer: 400 K) the change in entropy (KJ/K), and the entropy generation (KJ/Kg).