Q. Temperature coefficient of a reaction is 2. When temperature is increased from $30℃$ to $100℃$, rate of the reaction increases by
A) 128 times
B) 100 times
C) 500 times
D) 250 times
Explanation
(a)
Temperature coefficient
$= \frac{rate\ of\ recation\ at\ 35℃}{rate\ of\ recation\ at\ 25℃} = 2$
Thus, increase in rate is two times, when temperature is increased$\ 10℃$. Hence, by the increase of $70℃$(100-30=70$℃$), the increase in rate will be
$= (2)^{7}$ $\because 70{^\circ} = 7 \times 10{^\circ}$
$= 128$ times
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.