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Which compound would you expect to have the greater heat of hydrogenation: 1,2-pentadiene or 1,4-pentadiene?

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Below is the reaction of both molecules which will happen during hydrogenation.
<img src="https://prod-qna-question-images.s3.amazonaws.com/qna-images/answer/a951cae1-fcc9-498b-98a2-9ddc3713bd53/46060f70-1bfd-4d8d-b52c-665575b3058d/0ebsyd9.png" alt="Chemistry homework question answer, step 1, image 1" />
Since the product in both cases is same. Hence the energy of product is same in both.
Now since heat of hydorgenation is =  energy of reactant - energy of product 
Hence the reactant which has less rea...

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Which compound would you expect to have the greater heat of hydrogenation: 1,2-pentadiene or 1,4-pentadiene?

Which compound would you expect to have the greater heat of hydrogenation: 1,2-pentadiene or 1,4-pentadiene?

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