For the reaction: if at 298 K. Calculate

JEE MainChemistryEasy / Moderate/ Tough mPhysical Chemistry

For the reaction:
$C_{2}H_{5}OH(\mathcal{l}) + 3O_{2}(g) \longrightarrow 2{CO}_{2}(g) + 3H_{2}O(g)$
if
$\Delta U^{o} = - 1373kJ{mol}^{- 1}$ at 298 K. Calculate $\ \Delta H^{o}$

Show answer and solution

\Delta H^{o} = \Delta U^{o} + \Delta n_{g}RT

= - 1373 + 2 \times \frac{8.314 \times 298}{1000}

= - 1368\ kJ{\ mol}^{- 1}

Source: Grass-G / CH-28 Chemistry Paper FST 16 Jan.docx

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