\[ \begin{array}{ll} \mathrm{A}^{-}(\mathrm{g}) \rightarrow \mathrm...

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\[
\begin{array}{ll}
\mathrm{A}^{-}(\mathrm{g}) \rightarrow \mathrm{A}^{2+}(\mathrm{g}) & \Delta \mathrm{H}=1100 \mathrm{KJ} / \mathrm{mol} \\
\mathrm{A}(\mathrm{g}) \rightarrow \mathrm{A}^{2+}(\mathrm{g}) & \Delta \mathrm{H}=1200 \mathrm{KJ} / \mathrm{mol}
\end{array}
\]
P
WV
Electron gain enthalphy of \( A \) is \( P \times 10^{2} \mathrm{KJ} / \mathrm{mol} \). What is the value of \( P \) ?
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