Consider the following reversible first - order reaction of X at an initial concentration `[X]_(0)`. The values of the rate constants are `k_(f)= 2 s^(-1)` and `k_(b)= 1 s^(-1)`
`X underset(k_(b))overset(k_(r))iff y`
A plot of concentration of X and Y as function of time is

Options

A.
B.
C.
D.

Answer

B

Explanation

`X underset(k_(b))overset(k_(r))iff y " " ,K_(eq)=(k_(r))/(k_(b))=2`

at equation concentration of `[Y] gt [X] implies [Y]=2[X]`