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NewNcertChemistrythermodynamics-and-thermochemistry

At standard conditions, if the change in the enthalpy for the following reaction is –109 kJ mol⁻¹. $\mathrm{H_{2}(g)}$ + $\mathrm{Br_{2}(g)}$ → 2$\mathrm{HBr(g)}$ Given that bond energy of $\mathrm{H_{2}}$ and $\mathrm{Br_{2}}$ is 435 kJ mol⁻¹ and 192 kJ mol⁻¹, respectively, what is the bond energy (in kJ mol⁻¹) of $\mathrm{HBr}$? (2020 Covid)

✓ Correct answer: D

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Question ID #395543 · NewNcert