A catalyst lowers the activation energy from 20 kJ mol−1to 15 kJ mol−1 of the forward direction of the reaction A⇌B. Which of the following statement regarding the reaction is correct?

A
Activation energy of the backward direction is increased by $5 kJ {mol}^{- 1}$
B
Activation energy of the backward direction is decreased by $5 kJ {mol}^{- 1}$
C
Enthalpy ofreaction is increased by $5 kJ {mol}^{- 1}$
D
Equilibrium constant of the reaction is decreased

Energy of backward reaction is also decreased by $5 kJ {mol}^{- 1}$ without affecting the value of $Δ H$ and $K_{eq}$ of the reaction.

A catalyst lowers the activation energy from $20 kJ {mol}^{- 1}$ to $15 kJ {mol}^{- 1}$ of the forward direction of the reaction $A ⇌ B$ . Which of the following statement regarding the reaction is correct?