1.

For the elementary reaction M to N, the rate of disappearance of M increases by a factor of 8 upon doubling the concentration of M. The order of reaction with respect to M is

Answer»

4
3
2
1

Solution :Initially, rate `r = K[M]^(alpha) = ka^(alpha) ""…(i)`
On DOUBLING the CONCENTRATION of M
Dividing eqn. (ii) by eqn. (i),
`8 =2^(alpha) or 2^(alpha) = 2^(3) or alpha = 3`


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