In the given P-V diagram, a monoatomic gas ( = 5 3 ) is first compressed adiabatically…

Physics · JEE Advanced · NTA Exams — Thermodynamics

In the given P-V diagram, a monoatomic gas \(\left(\gamma=\frac{5}{3}\right)\) is first compressed adiabatically from state A to state B. Then it expands isothermally from state B to state C. [Given:\(\left.\left(\frac{1}{3}\right)^{0.6} \simeq 0.5, \ln 2 \simeq 0.7\right] .\)

Which of the following statement(s) is(are) correct?

1. The magnitude of the total work done in the process A → B → C is 144 kJ.
2. The magnitude of the work done in the process
   B → C is 84 kJ.
3. The magnitude of the work done in the process
   A → B is 60 kJ.
4. The magnitude of the work done in the process
   C → A is zero.