shaalaa.com
S

Solution - Integrated Rate Equations - Half-life of a Reaction

Account
User


Login
Register


      Forgot password?
Share
Notifications

View all notifications
Books Shortlist
Your shortlist is empty

Question

A first order reaction takes 23.1 minutes for 50% completion. Calculate the time required for 75% completion of this reaction.

(log 2 = 0.301, log 3 = 0.4771, log 4 = 0.6021)

Solution

You need to to view the solution
Is there an error in this question or solution?

Similar questions VIEW ALL

The experimental data for decomposition of N2O5

[`2N_2O_5 -> 4NO_2 + O_2`] in gas phase at 318K are given below:

t(s 0 400 800 1200 1600 2000 2400 2800 3200
`10^2xx[N_2O_5]mol L^(-1)` 1.63 1.36 1.14 0.93 0.78 0.64 0.53 0.43 0.35

(i) Plot [N2O5] against t.

(ii) Find the half-life period for the reaction.

(iii) Draw a graph between log [N2O5] and t.

(iv) What is the rate law?

(v) Calculate the rate constant.

(vi) Calculate the half-life period from and compare it with (ii).

view solution

The half-life for radioactive decay of 14C is 5730 years. An archaeological artifact containing wood had only 80% of the 14C found in a living tree. Estimate the age of the sample.

view solution

(a) For a first order reaction, show that time required for 99% completion is twice the time required for the completion of 90% of reaction.

 

view solution

Derive the relation between half life and rate constant for a first order reaction

view solution

A first order reaction takes 30 minutes for 50% completion. Calculate the time required for 90% completion of this reaction.

(log 2 = 0.3010)

view solution

Reference Material

Solution for concept: Integrated Rate Equations - Half-life of a Reaction. For the courses 12th CBSE (Arts), 12th CBSE (Commerce), 12th CBSE (Science), 12th HSC Science (Computer Science), 12th HSC Science (Electronics), 12th HSC Science (General) , PUC Karnataka Science
S