Chemical Kinetics Question 99

Question: For a chemical reaction $ A\to B $ it is found that the rate of reaction doubles, when the concentration of A is increased four times. The order in A for this reaction is [NCERT 1979; AIIMS 1997; J & K CET 2005]

Options:

A) Two

B) One

C) Half

D) Zero

Show Answer

Answer:

Correct Answer: C

Solution:

$ r=K{{[A]}^{m}} $ also $ 2,r=K{{[4A]}^{,m}} $ , $ \frac{1}{2}={{( \frac{1}{4} )}^{m}} $
$ \therefore m=\frac{1}{2} $



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