Assume that two radioactive substances A and B disintegrate as: `(-d[A])/(dt) = k_(A), t_(1//2)(A) = 0.693/(K_(A))` `(-d[B])/(dt) = k_(B)[B]^(2), t_(1

Question

Assume that two radioactive substances A and B disintegrate as: `(-d[A])/(dt) = k_(A), t_(1//2)(A) = 0.693/(K_(A))` `(-d[B])/(dt) = k_(B)[B]^(2), t_(1

Assume that two radioactive substances A and B disintegrate as:
`(-d[A])/(dt) = k_(A), t_(1//2)(A) = 0.693/(K_(A))`
`(-d[B])/(dt) = k_(B)[B]^(2), t_(1//2)(B) =1/(k_(B)[B]_(0)]`
If both the half life periods and initial concentrations are equal, what will be the ratio of the rates of the two substances at the start of the reaction?

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

Related Questions

The half - line period a radioactive element `X` is same as the mean life time of another radioactive element `Y`. Initially both of them have the sam

2 Answers 5 Views

The radioactive sources A and B with half lives of t hr and 2t hr respectively, initially contain the same number of radioactive atoms. At the end of

2 Answers 5 Views

Radioactive decay follows first order kinetics and the rate constant is often termed as decay constant. Certain radioactive substances may undero sequ

2 Answers 5 Views

The acitivity per ml of a solution of radioactive substances is x. How much of water be added to 200 ml of this solution so that the acitivity falls t

2 Answers 4 Views

The decay constant of a radioactive element is defined as the reciprocal of the time interval after which the number of atoms of the radioactive eleme

2 Answers 5 Views

A radioactive element A of decay constant `lamda_(A)` decays into another radioactive element B of decay constant `lamda_(B)`. Initially the number of

2 Answers 6 Views

Assertion Two different radioactive substances have initially same number of nuclei. Their decay constants are `lamda_(1)and lamda_(2)(ltlamda_(1)).`

2 Answers 5 Views

Two long ,thin,solid cylinders are identical in size, by they are made of different substances with two different thermal conductivities. The two cyli

2 Answers 4 Views

`""_(92)U""^(235)` nucleus absorbes a neutron and disintegrate into `""_(54)Xe""^(139),""_(38)Sr""^(94)`, and x neutrons x is

2 Answers 5 Views

The probaility that a certaun radioactive atom would get disintefrated in a time equal to the mean life fo the radioactive sample is

2 Answers 5 Views

Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

According to available data, `t_(1//2)(A) = t_(1//2)(B)`
`0.693/k_(A) = 1/(k_(B)[B]_(0))` or `k_(A)/k_(B)= 0.693[B]_(0)= 0.693[A]_(0)`
At the start of the reaction
`r_(A) = k_(A)[A]_(0)`, `r_(B) = k_(B)[B]_(0)^(2) = k_(B)[A]_(0)^(2)` â€¦â€¦......`[therefore[A]_(0) = [B]_(0)]`
`therefore r_(A)/r_(B) = (k_(A)[A]_(0))/(k_(B)[A]_(0)^(2))` or `r_(A)/r_(B) = 0.693 [A]_(0) xx ([A]_(0))/([A]_(0^(2))) = 0.693`