29. For the isomerization reaction of isopropenyl allyl ether, the activation energy is 123 kJ * mol-1, and the pre-exponential factor in the expression for the rate constant is 5.4 * 1011 s-1. Calculate a) the temperature at which the reagent will be consumed at a rate of 2% per second, b) the time required to complete the reaction by 40% at 150 C.