Trans `1,2`-dideuterocyclopropane `(A)` undergoes a first order decompoistion. The observed rate constant at a certain temperature, measured in terms of disapperance of `A` was `1.52xx10^(-4)s^(-1)`. The analyiss of Products shwoed that the reaction followed two parallel paths, one leading to dideuteropropane `(B)` and the other to cis-`1,2`-dideuterocyclopropane `(c )`. `(B)` was found to constitute `11.2%` of the reaction Product, independently of the extent of reaction. What is the order of reaction for each path and what is the value of the rate constant for the formation of each of the Products ?

Explanation

In case of parallel path reaction. `k_(B)=K_(A)xx"Fractionalyield"` of `B`
`=1.52xx10^(-4)xx0.112= 1.7xx10^(-5)s^(-1)`
`k_(C )=k_(A)xx"Fraction yield of C"`
`=1.52xx10^(-4)xx0.888= 1.35xx10^(-4)s^(-1)`
The reaction will be first order for each individual path.

Typical First Order Gas phase Reactions