The enthalpy change for the reaction, \( 4 \mathrm{H}(\mathrm{g}) \...

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The enthalpy change for the reaction, \( 4 \mathrm{H}(\mathrm{g}) \rightarrow 2 \mathrm{H}_{2}(\mathrm{~g}) \) is \( -869.6 \) \( \mathrm{kJ} \). The dissociation energy of \( \mathrm{H}-\mathrm{H} \) bond is:
\( \mathrm{P} \)
(a) \( 217.4 \mathrm{~kJ} \)
(b) \( -434.8 \mathrm{~kJ} \)
W)
(c) \( -869.6 \mathrm{~kJ} \)
\( ( \) d) \( +434.8 \mathrm{~kJ} \)
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