One mole of a diatomic ideal gas undergoes a cyclic process ABC as shown in figure. The process BC is adiabatic. The temperatures at A, B and C are 400 K, 800 K and 600 K respectively. Choose the correct statement:
Choose Your Option
A. The change in internal energy in whole cyclic process is \(250\mathrm{R}\) .
B. The change in internal energy in the process CA is 700 R.
C. The change in internal energy in the process AB is -350 R.
D. The change in internal energy in the process BC is \(-500\mathrm{R}\) .