An easy answer chem question?

Question

This was a funny one:

If a reaction takes 8 hours to go to completion at 15 degrees C, approximately how long will it take at 45

degrees C?

a. 1 hr

b. 2 hr

c. 8 hr

d. 64 hr

Answer 1

There is no way to tell for sure.  The absolute temperatures differ by about 10%, so things might go faster at the higher temperature by about that amount.  Which match none of the numbers given.