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Would this reaction be exothermic or endothermic?
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[QUOTE="Beowulf_8991, post: 6441950, member: 686042"] [B]Summary::[/B] A tertiary allylic alcohol rearranges to become a primary allylic alcohol, would it be exothermic because the final product is more stable and lower in energy? Hi all, this problem's been on my mind for a couple of days now and I'm not making any progress with it. My problem is that with part c), I can't figure out if the reaction as a whole is exothermic or endothermic; the only data they've given me is that the entropy of activation is +20 Jmol-1K-1 and that the solvent isotope effect value is KH/KD = 0.33. I think I've figured out the main bulk of the energy diagram but it's the product's energy level that's giving me problems. As far as I understand it, the final product is a tertiary allyl (primary alcohol) but the reactant is a primary allyl (tertiary alcohol) and since the tertiary allyl is a more stable alkene, it should be at a lower energy level therefore making the reaction exothermic. However, the fact it also goes from a tertiary alcohol to a primary one (less stable) makes me think it could be endothermic because of the decreased stability. It's been a while since I covered energy diagrams so apologies for any rookie mistakes! I'm grateful for any pointers you guys can give me :) [/QUOTE]
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Would this reaction be exothermic or endothermic?
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