Derive an expression for the amount of work obtained during the process in terms of m, c, T1 and T2 .

Question

Two blocks of metal each of mass m and specific heat c, initially at absolute temperatures T₁ and T₂ respectively, are brought to the same final temperature by means of a reversible process. Derive an expression for the amount of work obtained during the process in terms of m, c, T₁ and T₂ .