Refer to the Introduction section where the identity of the rate- determining reaction was discussed. Suppose that the rate constant for reaction (1a) increases by 2% for each increase of 1 degree C, and the Q. What would be the percent decrease in the observed elapsed time when the temperature increases by 1 degree c ? a)2% b)20% c)2+20= 22% d)0.02 X 20 = 0.4%