The enthalpy (H) of an elementary exothermic reaction `A iff B` is schematically plotted against the reaction coordinate. The plots in the presence and absence of a catalyst are shown in dashed and solid lines, respectively. Identify the correct plot for the reaction.

Options

A.
B.
C.
D.

Answer

A

Explanation

For exothermic reaction
`DeltaH=E_(P)-E_(R) lt 0`
`E_(B)-E_(A) lt 0`
`E_(B) lt E_(A)`
Catalyst does not changes the initial and final position of the reaction so correct answer is (A)