For an elementary reaction at

CHEMISTRY · Subjective · AP · Chemistry · Kinetics · Kinetics

Problem

298\,\text{K}

, the activation energy for the forward direction is

72\,\text{kJ mol}^{-1}

and the overall energy change

\Delta E

-18\,\text{kJ mol}^{-1}

. Calculate the activation energy for the reverse reaction, in kJ mol

^{-1}