Physics Question from JEE Main 2025 · 29 January, Shift 2

A poly-atomic molecule ($C_V = 3R$, $C_P = 4R$, where $R$ is the gas constant) goes from phase space point A ($P_A = 10^5 \, Pa,\ V_A = 4 \times 10^{-6} \, m^3$) to point B ($P_B = 5 \times 10^4 \, Pa,\ V_B = 6 \times 10^{-6} \, m^3$) to point C ($P_C = 10^4 \, Pa,\ V_C = 8 \times 10^{-6} \, m^3$). A to B is an adiabatic path and B to C is an isothermal path. The net heat absorbed per unit mole by the system is: