Question: For the process (mathrm{H}_{2} mathrm{O}(l) longrightarrow mathrm{H}_{2} mathrm{O}(g)) at (298 mathrm{~K}) and 1.0 atm, (Delta H) is more positive than (Delta E) by (2.5 mathrm{~kJ}

For the process \(\mathrm{H}_{2} \mathrm{O}(l) \longrightarrow \mathrm{H}_{2} \mathrm{O}(g)\) at \(298 \mathrm{~K}\) and 1.0 atm, \(\Delta H\) is more positive than \(\Delta E\) by \(2.5 \mathrm{~kJ} / \mathrm{mol}\). What does the \(2.5 \mathrm{~kJ} / \mathrm{mol}\) quantity represent?

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