See image — AITS & Test Series Chemistry Question

💡 Solution & Explanation

64 atm 1 atm   A 800 K   B 200 K   C 200 K V For AB path : 1 1 1 3 1 1 1 7 5 2 1 2 T 800 P P 64 2 atm T 200                              Total done AB BC W W W   B V C P nC T nRT n P             3 2 1 R 200 800 1 R 200 n 2 1              =     900R 140R   = 2080.00 cal