Match the column: (Given process does not include chemical reaction and phase change) — Thermodynamics and Thermochemistry Chemistry Question

💡 Solution & Explanation

$\Delta H = \Delta U + \Delta(PV)$ is the fundamental definition of enthalpy, universally true for any matter (P, Q, R, S). $\Delta H = nC_{P,m}\Delta T$ strictly applies to ideal gases under any process (R); for isothermal processes, $\Delta T = 0$, making $\Delta H = 0$, which mathematically satisfies the equation (S). $q = \Delta U$ applies when work is zero, strictly mapping to an isochoric process (Q).