Question

Describe how to use the information illustrated in the potential energy diagram below to determine the enthalpy change of the reaction and if the reaction is endothermic or exothermic.

Answer 1

\[\Delta H = PE_{products}-PE_{reactants} = C-A\]
The activation energy would be: B-A
(whichi is energy required to start the rxn)

Answer 2

i still dont get the equation

Answer 3

What don't you get? I already gave you what you need :p