exercise 11.77 6th edition

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505166714
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exercise 11.77 6th edition

Postby 505166714 » Tue Mar 12, 2019 10:26 pm

In b) why is the reaction endothermic? Is it because a halogen is stable in the form X2, so 2X is an unstable form thus has higher energy?
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Angela Grant 1D
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Re: exercise 11.77 6th edition

Postby Angela Grant 1D » Tue Mar 12, 2019 10:30 pm

I found this answer on an older, similar post:

"Breaking a diatomic molecule X2(g) requires energy to become 2X(g), and therefore the reaction is endothermic. This is true for other halogens as well"

Jerome Mercado 2J
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Re: exercise 11.77 6th edition

Postby Jerome Mercado 2J » Tue Mar 12, 2019 10:32 pm

A breaking of bonds is usually an endothermic process since energy is required to break bonds (which may also release some energy). The net is a positive intake of energy thus being endothermic.


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