Among the following the reaction for which , is — Thermodynamics and Thermochemistry Chemistry Question

💡 Solution & Explanation

The relationship is $\Delta H = \Delta E + \Delta n_g RT$. For $\Delta H = \Delta E$, the change in gaseous moles ($\Delta n_g$) must be exactly zero. Only reaction (b) satisfies this: $\Delta n_g = 2 - (1 + 1) = 0$.