Part 3 of 3

Question

ΔΗ =- 100

kcal

mol

or ΔΗ=+100

kcal
mol

OAH =- 100

will proceed faster

×

Ο ΔΗ=+100

kcal
mol

cannot predict which will proceed faster

kcal
- will proceed faster

Answer 1

Based on the information provided, the reaction with ΔΗ=-100 kcal/mol will proceed faster. This is because a lower enthalpy change indicates that the reaction releases energy during the process, making it more energetically favorable and likely to occur at a faster rate. On the other hand, a reaction with a positive enthalpy change of +100 kcal/mol requires an input of energy to proceed, which typically slows down the reaction rate. Therefore, the reaction with ΔΗ=-100 kcal/mol is expected to proceed faster.