Asked by john

IF a reation generally takes 40 seconds to occur at 45 degrees C, how long should the reaction take a t the following temperatures?
A. 35C
B. 55C
C. 65C
Answered by DrBob222
The rule of thumb, which is not exact, is that the reaction doubles for every 10 C rise in temperature. So at 35 it should be 1/2, at 55 should be double, and at 65 should be doubled again (4x)
Answered by john
the lower the temperture the longer it should take correct?
Answered by DrBob222
yes.
Answered by john
ok so
A.20 seconds
B. 80 seconds
C. 120 seconds
Answered by DrBob222
20 is ok
80 is ok
If you double again, that is 160 seconds. Or double x double = 4x and 4 x 40 = 160
Answered by john
Thank You
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