What is the order with respect to each of the reactant and overall order of the following reactions ?
(a) `5Br_((aq))^(-)+BrO_((aq))^(-)+6H_((aq))^(+)rarr 3Br_(2(l))+3H_(2)O_((l))`
The experimental rate law is
Rate `=k[Br^(-)][BrO_(3)^(-)][H^(+)]^(2)`
(b) `CH_(3)CH_((g))overset(Delta)rarr CH_(4(g))+CO_((g))`
the experimental rate law is
Rate `=k[CH_(3)CHO]^((3)/(2))`

Explanation

(a) First order with respect to `Br^(-)`, first order with respect to `BrO_(3)^(-)` and second order with respect to `H^(+)`. Hence the overall order of the reaction is equal to `1+1+2=4`
(b) Order of the reaction with respect to acetaldehyde is `(3)/(2)` and overall order is also `(3)/(2)`