Chemical Kinetics and Nuclear ChemistryEasy

Question

Mechanism of a hypothetical reaction
X2 + Y2 → 2XY is given below :
(i) X2 → X + X(fast)
(ii) X + Y2 ⇌ XY + Y (slow)
(iii) X + Y → XY (fast)
The overall order of the reaction will be :

Options

A.

2

B.

0

C.

1.5

D.

1

Solution

According to law of mass action
r = K[X][Y2]               ....(1)
From fast step-1
Keq = [X]2[X2]
[X] = Keq . [X2]
[X] = Keq[X2]1/2    .....(2)
m equation (1) & (2)
r = Keq.[X2]1/2 [Y2]
r = K'[X2]1/2[Y2].
Overall order of reaction = 1 + 0.5 = 1.5
      Option (3)

Create a free account to view solution

View Solution Free
Topic: Chemical Kinetics and Nuclear Chemistry·Practice all Chemical Kinetics and Nuclear Chemistry questions

More Chemical Kinetics and Nuclear Chemistry Questions

Sometimes, reaction rates can be estimated by knowing...In terms of polar character, which of the following order is correct :-...A reaction is catalysed by H+ ion;and in the rate law the dependence of rate is of first order with respect to the conce...Rates of hydration of the following alkenes are :-(P) CH3-O-CH = CH2(Q) F-CH = CH2(R) CH3 -CH = CH2(S) CH = CH2...6C12 and 1T3 are formed in nature due to the nuclear reaction of neutron with...