Home
Class 12
PHYSICS
What is the disintegration constant of r...

What is the disintegration constant of radon if the number of its atoms diminishes by `18%` in 24 h? `["Take ln "(0.82)~~-0.2]`

A

`2.1xx10^(-3)s^(-1)`

B

`2.1xx10^(5)s^(-1)`

C

`22xx10^(6)s^(-1)`

D

`22xx10^(-6)s^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Similar Questions

Explore conceptually related problems

What will be the ionisation constant of formic acid if its 0.01 M solution is 14.5% ionised ?

A radioactive sample has N_0 active at t = 0 . If the rate of disintegration at any time is R and the number of atoms is N , them the ratio R//N varies with time as.

The number of gm atoms of oxygen present in 0.2 mole of H_(2)S_(2)O_(8) is.

Calculate number of atoms in 0.2 mole of oxygen atoms.

If log2=0.301 and log3=0.477, find the number of integers in 6^(20)

If log2=0.301 and log3=0.477, find the number of integers in 5^(200)

A freshly prepared sample of a radioisotope of half - life 1386 s has activity 10^(3) disintegrations per second Given that ln 2 = 0.693 the fraction of the initial number of nuclei (expressed in nearest integer percentage ) that will decay in the first 80 s after preparation of the sample is

A freshly prepared sample of a radioisotope of half - life 1386 s has activity 10^(3) disintegrations per second Given that ln 2 = 0.693 the fraction of the initial number of nuclei (expressed in nearest integer percentage ) that will decay in the first 80 s after preparation of the sample is

Radioactive disintegration is a first order reaction and its rate depends only upon the nature of nucleus and does not depend upon external factors like temperature and pressure. The rate of radioactive disintegration (Activity) is represented as -(dN)/(dt)=lambdaN Where lambda= decay constant, N= number of nuclei at time t, N_(0) =intial no. of nuclei. The above equation after integration can be represented as lambda=(2.303)/(t)log((N_(0))/(N)) Half-life period of U^(2.5xx10^(5) years. In how much thime will the amount of U^(237) remaining be only 25% of the original amount ?

What is the total number of atoms present in 25.0 mg of camphor, C_(10)H_(16)O ?