The document Parallel Reaction - Chemical Kinetics Chemistry Notes | EduRev is a part of the Chemistry Course Physical Chemistry.

All you need of Chemistry at this link: Chemistry

**PARALLEL REACTION**

Parallel reaction are those reaction in which the reactant can form one of two or more products

Consider the following parallel reaction in which reactant A can form two products B & C.

The rate law for the reactant and products are :

= â€“k_{B}[A] â€“ k_{c}[A] = â€“(k_{B} + k_{C})[A] â€¦(1)

= k_{B}[A] â€¦(2)

= k_{C}[A] ....(3)

Integration of equat ion (1) with the init ial condit ion [A]_{0} â‰ 0 and [B] = 0 = [C] yields

[A] = [A]_{0} e^{-(kB + kC )t }.......(4)

Integration of equation (2), we get

â€¦(5)

Similarly

â€¦(6)

i.e. the ratio of concentration of product is

i.e. the product concentration ratio remains constant with time.

The yield, Ï†, is defined as the probability that a given product will be formed by decay of the reactant.

The quantum yield of product [B] is Ï†_{B} = yield of [B] =

The quantum yield of product [C] is

**Problem. Find the quantum yield of [B] & [C] in the following reaction**

**Sol.**

â€¦(1)

â€¦(2)

then

**Problem. Find the quantum yield of [B], [C] & [D] in the following reaction.**

Sol.

â€¦(1)

â€¦(2)

â€¦(3)

The ratio of formation of product [B], [C] & [D] are

Offer running on EduRev: __Apply code STAYHOME200__ to get INR 200 off on our premium plan EduRev Infinity!

77 videos|83 docs|32 tests

### Integrated Rate Law Expression Of First Order - Chemical Kinetics

- Video | 05:05 min
### Series Reactions and Selectivity - Chemical Kinetics

- Video | 03:37 min
### Introduction to Chemical Kinetics

- Video | 09:31 min
### Integrated Rate Law Expression Of Second Order - Chemical Kinetics

- Video | 05:03 min
### Arrhenius Equation - Chemical Kinetics

- Doc | 4 pages

- Integrated Rate Law Expression Of Zero Order - Chemical Kinetics
- Video | 04:24 min
- Series Reaction - Chemical Kinetics
- Doc | 2 pages