Chemical Kinetics Question 332

Question: A chemical reaction was carried out at 300 K and 280 K. The rate constants were found to be $ k_1 $ and $ k_2 $ respectively, then

Options:

A) $ k_2=4k_1 $

B) $ k_2=2k_1 $

C) $ k_2=0.25,k_1 $

D) $ k_2=0.5k_1 $

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Answer:

Correct Answer: C

Solution:

[c] The rate constant doubles for $ 10{}^\circ C $ rise in temperature. For $ 20{}^\circ C $ rise, the rate constant will be 4 times
$ \therefore k_1=4k_2or,k_2=0.25k_1 $



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