Question

The rate of a chemical reaction doubles for every ${10}^{o}C$ rise in temperature. If the temp is increased by ${60}^{o}C$ the rate of reaction increases by:

• A. $20$ times
• B. $32$ times
• C. $64$ times
• D. $128$ times

Answer 1

The correct option is B $32$ times

The Rate of Chemical reaction doubles for every ${10}^{o}C$ rise in temperature. If the temp is increased by ${60}^{o}C$, the rate of reaction increases by $2^n$ times.

where n is a number of times there was a ${10}^{o}C$ rise in temperature to reach the final Temp.

Here n = 5. So, Rate increases by $2^5$ = 32 times

Hence, the correct option is $B$