For the reaction: `2A + B rarr A2B` the `rate = k[A][B]^2` with `k = 2.0 × 10^(-6) mol^(-2) L^2 s^(-1)`. Calculate the initial rate of the reaction when `[A] =0.1 mol L^(-1), [B] = 0.2 mol L^(-1)`. Calculate the rate of reaction after [A] is reduced to `0.06 mol L^(-1)`.

Explanation

`A to B`
`r = K [A],` Where `K = 0. 50 sec ^(-1)`
`r = 0. 50 xx (0. 60 ) = 0. 3000 = 3 xx 10 ^(-1) mol L ^(-1) sec ^(-1)`