1.

The rate of the reaction A toProducts, at the initial concentration of 3.24xx10^(-2) M is nine times its rate at another initial concentration of 1.2xx10^(-3) M. The order of the reaction is

Answer»

`(1)/(2)`
`(3)/(4)`
`(3)/(2)`
`(2)/(3)`

SOLUTION :`9 r = K(3*24 xx 10^(-2))^(n)""…(i)`
`r = k(1* 2 xx 10^(-3))^(n)""…(ii)`
DIVIDING (i) by (ii),
` 9 = ((3.24 xx 10^(-2))/(1*2 xx 10^(-3)))^(n) or 9 = (27)^(n)`
or `(3)^(2) = (3^(3))^(n) = (3)^(3N).`
Hence, `3 n = 2 or n = 2//3`.


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