Question

when specific rate constant is 2min-1 . The half life period of a first order reaction is?​

Answer 1

Answer:

Half life for a first order reaction

The half-life of a reaction is the time required for the reactant concentration to decrease to one-half its initial value. The half-life of a first-order reaction is a constant that is related to the rate constant for the reaction: t1/2 = 0.693/k. Radioactive decay reactions are first-order reactions.

Answer 2

The half life period is 0.3465 minute

Explanation:

Given:

The specific rate constant (rate constant when the order of the reaction is 1) is 2 /min

To find out:

The half life of this first order reaction

Solution:

We know that the relationship between specific rate constant $k$ and half life $t_{1/2}$ is given by

$t_{1/2}=\frac{0.693}{k}$

$\implies t_{1/2}=\frac{0.693}{2}$

$\implies t_{1/2}=0.3465$ min

or, $t_{1/2}=20.79$ seconds

Hope this answer is helpful.

Know More:

Similar Question: https://brainly.in/question/21411278

Q: If the half life period of a first order reaction in a is 2 minutes, how long will it take a to reach 25% of its initial concentration ?

Click Here: https://brainly.in/question/10740865