Question

If $\Delta G$ and $\Delta S$ for the reaction: $A\left(g\right)+B\left(g\right)\to P\left(g\right)$, at 300 K are $-600$ cal and $-10cal/K$. Then $\Delta H$ for the reaction in kcal is ______.

Answer 1

If $\Delta G$ and $\Delta S$ for reaction:

$A\left(g\right)+B\left(g\right)\to P\left(g\right)$ at 300 K are $-600$ cal and $-10cal/K$,

$\Delta G=\Delta H-T\Delta S$

$-600=\Delta H-300(-10)$

$\Delta H=-3600cal=-3.6kcal$