A second-order reaction has a rate constant of 0.009500/(M · s) at 30°C. At 40°C, the rate constant is 0.03300/(M · s). (A) What is the activation energy for this reaction? kJ/mol (B) What is the frequency factor, A? /(M · s) (C) Predict the value of the rate constant at 73°C. /(M · s)