Catalytic decomposition of nitrous oxide by gold at `900^(@)C` at an initial pressure of `200 mm` was `50%` in `53` minute and `73%` in `100` minute.
(a) What is the order of reaction?
(b) Calculate velocity constant.
(c ) How much will it decompose in `100` minute at the same temperature but at an initial pressure of `600 mm`?

Explanation

(i) first order (ii) `k=1.308 xx 10^(-2)" min"^(-1)` (iii) 73%