a. Cis-`2`-butene `rarr` trans-`2`-butane, `DeltaH_(1)`
b. Cis-`2`-butane `rarr1`-butene, `DeltaH_(2)`
c. Trans-`2`-butene is more stable than `C` is-`2`-butene
d. Ethalpy of combustion of `1`-butene, `DeltaH =- 649.8 kcal//mol`
e. `9DeltaH_(1) +5DeltaH_(2) = 0`
f. Enthalpy of combustion of trans `-2`-butene, `DeltaH =- 647.1 kcal mol^(-1)`. Calculate `DeltaH_(1)`and `DeltaH_(2)`?