If t X represents time required for a fraction X of a reactant to be reacted during a reaction involving only one reactant. Then match List-I with List-II. List - I List - II (P) Zero order reaction

Question

If t X ​ represents time required for a fraction X of a reactant to be reacted during a reaction involving only one reactant. Then match List-I with List-II. List - I List - II (P) Zero order reaction (1) t 1/2 ​ t 3/4 ​ ​ = 3 (Q) First order reaction (2) t 1/8 ​ t 1/4 ​ ​ = 2 (R) Second order reaction (3) t 3/4 ​ t 7/8 ​ ​ = 2 3 ​ (S) Order of reaction ≥ 1 (4) α = ( 1 − e − kt ) (5) t 50% ​ t 100% ​ ​ = 2 (α → degree of dissociation, k → rate constant)

TestHub · Accepted Answer

For reaction A → Product

Using the given formula

we can solve all the options

For zero order reaction

$t = \frac{[ A ] _{o} - [ A ] _{t}}{k}$

For first order reaction

$t = \frac{1}{k} ℓ n \frac{[ A ] _{o}}{[ A ] _{t}}$

For second order reaction

$t = \frac{1}{k} [\frac{1}{[ A ] _{t}} - \frac{1}{[ A ] _{0}}]$

List - I	List - II
(P) Zero order reaction	(1) $\frac{t _{3/4}}{t _{1/2}} = 3$
(Q) First order reaction	(2) $\frac{t _{1/4}}{t _{1/8}} = 2$
(R) Second order reaction	(3) $\frac{t _{7/8}}{t _{3/4}} = \frac{3}{2}$
(S) Order of reaction $\geq 1$	(4) $α = (1 - e^{- kt})$
	(5) $\frac{t _{100%}}{t _{50%}} = 2$

Chemistry - Chemical Kinetics Question with Solution | TestHub

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