+ H, AH° = -127 kJ/mol but-1-ene + H2 AH° = -120 kJ/mol cis-but-2-ene

Organic Chemistry
8th Edition
ISBN:9781305580350
Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
Publisher:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
Chapter2: Alkanes And Cycloalkanes
Section: Chapter Questions
Problem 2.57P: Following are heats of combustion per mole for methane, propane, and 2,2,4-trimeth-ylpentane. Each...
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∆H° values obtained for a series of similar reactions are one set of experimental data used to determine the relative stability of alkenes. Explain how the following data suggest that cis-but-2-ene is more stable than but-1-ene (Section 12.3A).

+ H,
AH° = -127 kJ/mol
but-1-ene
+ H2
AH° = -120 kJ/mol
cis-but-2-ene
Transcribed Image Text:+ H, AH° = -127 kJ/mol but-1-ene + H2 AH° = -120 kJ/mol cis-but-2-ene
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What would be the energy diagram for it?

but-1-ene
+
cis-but-2-ene
H₂₂
+ H₂
AH° = -127 kJ/mol
AH° -120 kJ/mol
Transcribed Image Text:but-1-ene + cis-but-2-ene H₂₂ + H₂ AH° = -127 kJ/mol AH° -120 kJ/mol
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