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Answer on Physical Chemistry Question for ahmed

Question #22012
in the following reaction h2+br2 2hbr
calculate delta heat then state the type of the reaction and draw its graph.given that the bonds energies are h-h=104kj br-br=36kj h-br=60kj
Expert's answer
delta H = E delta H (products) - E delta H (reactants) (E - total sum)

Bonds energies that are given are energies per mol, so it has
the same meaning and measuring unit.

delta H = 2*60 - (104 + 36) = -20 kJ

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