Match the column — Thermodynamics and Thermochemistry Chemistry Question

💡 Solution & Explanation

(P) $W = nRT \ln(P_2/P_1)$ strictly applies to reversible isothermal expansion. (Q) $W = \Delta U = nC_{v,m}\Delta T$ holds for both reversible and irreversible adiabatic processes ($q=0$). (R) $PV = nRT$ is the ideal gas law, applicable across all states in these processes. (S) The integral definition of work applies universally to all $P-V$ processes.