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Q. For a reaction in which all reactants and products are liquids, which one of the following equations is most applicable?

NTA AbhyasNTA Abhyas 2022

Solution:

As all reactant and product are liquid
$\Delta n_{\left(g\right)}=0$
$\text{ΔH} = \text{ΔE} - \text{Δn}_{\text{g}} \text{RT}$
$\text{ΔH} = \text{ΔE} \left(\because \text{Δn}_{\text{g}} = 0\right)$