At standard conditions, if the change in the enthalpy for the following reaction is \( -109 \mathrm{~kJ} \mathrm{~mol}^{-1} \)

\( \mathrm{H}_{2(\mathrm{~g})}+\mathrm{Br}_{2(\mathrm{~g})} \rightarrow 2 \mathrm{HBr}_{(\mathrm{g})} \)

Given that bond energy of \( \mathrm{H}_{2} \) and \( \mathrm{Br}_{2} \) is \( 435 \mathrm{~kJ} \mathrm{~mol}^{-1} \) and 192 \( \mathrm{kJ} \mathrm{mol}^{-1} \), respectively, what is the bond energy (in \( \mathrm{kJ} \mathrm{mol}^{-1} \) ) of \( \mathrm{HBr} \) ?

[Re-NEET 2020]

Question

At standard conditions, if the change in the enthalpy for the following reaction is \( -109 \mathrm{~kJ} \mathrm{~mol}^{-1} \)

\( \mathrm{H}_{2(\mathrm{~g})}+\mathrm{Br}_{2(\mathrm{~g})} \rightarrow 2 \mathrm{HBr}_{(\mathrm{g})} \)

Given that bond energy of \( \mathrm{H}_{2} \) and \( \mathrm{Br}_{2} \) is \( 435 \mathrm{~kJ} \mathrm{~mol}^{-1} \) and 192 \( \mathrm{kJ} \mathrm{mol}^{-1} \), respectively, what is the bond energy (in \( \mathrm{kJ} \mathrm{mol}^{-1} \) ) of \( \mathrm{HBr} \) ?

[Re-NEET 2020]

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