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Question

The rate of a reaction between A and B increases by a factor of 1000 times when the concentration of A is changed from 0.1 mole litre−1 to 1 mole litre −1. The order of the reaction with respect of A is:

A
2
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B
1
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C
3
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D
4
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Solution

The correct option is C 3
rate=k[A]m
r1000r
for
0.1 [A] 1[A]
i.e.[A] 10[A]
so rate
1000=(10)m
m = 3
Thus order of the reaction is 3.

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