Chemical Kinetics Question 245

Question: The rate of a reaction is doubled for every $ 10^{o} $ rise in temperature. The increase in reaction rate as a result of temperature rise from $ 10^{o} $ to $ 100^{o} $ is [KCET 1993; Kerala PET 2002; MP PET 2003]

Options:

A) 112

B) 512

C) 400

D) 614

Show Answer

Answer:

Correct Answer: B

Solution:

$ \frac{k_{t}+10}{K_{t}}=\frac{r_{t}+10}{r_{t}}=2 $ For an increase of temperature to $ 90^{o}C $ i.e. 9 times, the rate increases by $ 2^{9} $ times i.e. 512.



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