The temperature coefficient of a reaction is 2. When the temperature is increases from 30° C to 90° C , the rate of reaction is increased by

Question

The temperature coefficient of a reaction is 2. When the temperature is increases from 30° C to 90° C , the rate of reaction is increased by (A) 150 times (B) 410 times (C) 72 times (D) 64 times

Tardigrade Admin · Accepted Answer

Temperature coefficient 2 means rate of reaction doubles at every 10° C rise in temperature. Thus, (k90 ° C/k30 ° C)=26=64

Q. The temperature coefficient of a reaction is 2. When the temperature is increases from $3 0^{\circ} C$ to $9 0^{\circ} C$ , the rate of reaction is increased by

150 times

410 times

72 times

64 times

Temperature coefficient 2 means rate of reaction doubles at every $1 0^{\circ} C$ rise in temperature.
Thus, $\frac{k _{9 0^{\circ} C}}{k _{3 0^{\circ} C}} = 2^{6} = 64$

Q. The temperature coefficient of a reaction is 2. When the temperature is increases from 30∘C to 90∘C , the rate of reaction is increased by