Two elementary reactions occur at 298 K

CHEMISTRY · Subjective · A Level · Chemistry · Kinetics · Kinetics

Problem

Two elementary reactions occur at 298 K. • Reaction X:

E_a = 55\,\text{kJ mol}^{-1}

• Reaction Y:

E_a = 15\,\text{kJ mol}^{-1}

If the temperature is increased by 15 K, which reaction’s rate constant will change more? Briefly justify your prediction.