At standard conditions, if the change in the enthalpy for the following reaction is -109 kJ mol-1

H2(g)+Br2(g) 2HBr(g)

and the bond energy of H2 and Br2 is 435 kJ mol-1 and 192 kJ mol-1, respectively, what is the bond energy (in kJ mol-1) of HBr?

1. 368

2. 736

3. 518

4. 259

Subtopic:  Thermochemistry |
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NEET 2023 - Target Batch - Aryan Raj Singh
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