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Topic: Help in an mcq!!  (Read 1941 times)

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Offline bravegirl123

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Help in an mcq!!
« on: June 03, 2013, 04:26:00 PM »
The correct answer is C. How can it not be D as the overall energy change is calculated by subtracting the bond energies of products from reactants. Please tell me in detail. I have asked several people but am not satisfied with their answers.

Offline Hunter2

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Re: Help in an mcq!!
« Reply #1 on: June 05, 2013, 07:20:36 AM »
Is D not vise versa. If the bond energy between H-I is smaller as in H-Cl told in answer C then it must be higher in I-I as in Cl-Cl, not as described like in answer D.

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