The time required for 5% completion of a reaction at 300 K is equal to that required for its 20% completion at 320 K. If the pre -exponential factor for the reaction is 3.56Ć109 secā1. Then which of the following is correct.(given log95 = 1.98, log80 = 1.90, log5 =0.7, R=253JKā1molā1)