The maximum work obtainable from the body till it comes to equilibrium with the

Question

A body of mass 2 kg and C_p = 1.00 kJ/kgK is available at 600 K. If the atmosphere is 300 K and ln2=0.693, the maximum work obtainable from the body till it comes to equilibrium with the atmosphere is                     

(a) 150 kJ                    (b) 142 kJ

(c) 184.2 kJ                 (d) 190.5 kJ