A Photochemical reaction between H2 and cl2 is zero order
reaction. Explain
Answers
Explanation:
Zero-order reaction is a chemical reaction wherein the rate does not vary with the increase or decrease in the concentration of the reactants. Therefore the rate of these reactions is always equal to the rate constant of the specific reactions (since the rate of these reactions is proportional to the zeroth power of reactants concentration).
Differential and Integral Form of Zero Order Reaction
The Differential form of a zero order reaction can be written as:
Rate = −dAdt=k[A]0=k
Where ‘Rate’ refers to the rate of the reaction and ‘k’ is the rate constant of the reaction.
Answer:
Zero-order reaction is a chemical reaction wherein the rate does not vary with the increase or decrease in the concentration of the reactants. Therefore the rate of these reactions is always equal to the rate constant of the specific reactions (since the rate of these reactions is proportional to the zeroth power of reactants concentration).
Differential and Integral Form of Zero Order Reaction
The Differential form of a zero order reaction can be written as:
Rate = −dAdt=k[A]0=k
Where ‘Rate’ refers to the rate of the reaction and ‘k’ is the rate constant of the reaction.
This differential form can be rearranged and integrated on both sides to get the required Integral form as shown below.
Rate = −d[A]0dt=k
Multiplying both sides with ‘-dt’, we get:
d[A]=−kdt
Integrating on both sides, we get:
∫[A][A]0d[A]=−∫t0kdt
Where [A]0 is the initial concentration of the reactant [A] at time t=0 . Solving for [A], we get:
[A]=[A0]–kt
Which is the required integral form. This form enables us to calculate the population of the reactant at any given time post the start of the reaction.