For the decomposition of a compound AB at 600 K the following data were obtained :

The order for the decomposition of AB is

Options

A. 0
B. 1
C. 2
D. 1.5

Answer

C

Explanation

(C ) Let Rate = k `[AB]^(n)`
`2.75xx10^(-8) = k (0.2)^(n)`
`11xx10^(-8) = k(0.40)^(n)`
`24.75xx10^(-8) = k (0.6)^(n)`
Dividing (ii ) by (i)
`(11xx10^(-8) )/(2.75xx10^(-8)) = ((0.4)^(n))/((0.2)^(n))`
4= `2^(n)`
n=2