For the reaction , | | | | $ — Thermodynamics and Thermochemistry Chemistry Question
Question
For the reaction $\text{C(s)} + \frac{1}{2}\text{O}_2\text{(g)} \to \text{CO(g)}$, | $\Delta H > \Delta E$ | $\Delta H < \Delta E$ | $\Delta H = \Delta E$ | $
Answer: A
💡 Solution & Explanation
$\Delta n_g = 1 - 0.5 = +0.5$. Since $\Delta n_g > 0$, $\Delta H = \Delta E + \Delta n_g RT$ evaluates to $\Delta H = \Delta E + 0.5RT$, which means $\Delta H > \Delta E$.
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