Home
Class 12
CHEMISTRY
A first order reaction has a specific ra...

A first order reaction has a specific rate constant of `10^(-2) sec^(-1)`. How much time will it take for `20g` of the reactant to reduce to `5g` ?

A

`138.6s`

B

`346.5s`

C

`639.0s`

D

`238.6s`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Similar Questions

Explore conceptually related problems

The half life of a first order reaction having rate constant k=1.7xx10^(-5) sec^(-1) is :

A first order reaction is 50% completed in 1.26 xx 10^14 s. How much time would it takefor 100% completion?

A 1^(st) order reaction has specific rate constant of 2 min ^(-1) The half - life of this reaction will be ______.

The half life a first order reaction is1.7hr.How long will it take for 20% of the reactant to react?

The rate constant of a first order reaction is 6.8xx10^(-4)s^(-1) . If the initial concentration of the reactant is 0.04 M, what is its molarity after 20 minutes? How long will it take for 25% of the reactant to react?

The rate constant of a certain first order reaction is 3.12xx10^(-3) min^(-1) How many minutes does it make for the reactant concentration to deop to 0.02 M if the initial concentration of the reactant in 0.045 M?