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  • Temperature coefficient of a reaction is 2,by what factor the rate of reaction increases when the temperature is increased from <img alt="20^{\circ}C\: \: to\: \: 70^{\circ}C" src="https://lea

Temperature coefficient of a reaction is 2,by what factor the rate of reaction increases when the temperature is increased from 20^{\circ}C\: \: to\: \: 70^{\circ}C?

Option: 1

16


Option: 2

32


Option: 3

64


Option: 4

86


Answers (1)

best_answer

 

Temperature Coefficient -

In homogenous thermal reaction, the rate constant of the reaction becomes double / thrice by changing the temperature by 10^{\circ}.

- wherein

Formula:

\frac{K_{t}+10}{K_{t}}\approx2 to 3

K_{t} = Rate constant of the reaction which is temperature dependent

 

 

 

Temp. Coefficient= \frac{k+10}{k}

2=\frac{k+10}{k}\: \: \therefore k=10

So rate of reaction doubles by rise in 10^{\circ}C which means that temp is increased by 50^{\circ}C so rate of reaction becomes \left ( 2 \right )^{5}= 32 times.

Posted by

Ritika Jonwal

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