Home
Class 12
CHEMISTRY
The reaction A + 2B + C rarr D occurs by...

The reaction `A + 2B + C rarr D` occurs by the following mechanism.
`A + B underset(k_(2))overset(k_(1))hArr E` (rapid equilibrium)
`E + C overset(k_(1))rarr` F(slow)
`F + B overset(k_(4))rarr D` (very fast)
The rate law for this reaction is

A

`r = k[C]`

B

`r = k[A][B]^(2)[C]`

C

`r = k[D]`

D

`r = k[A][B][C]`

Text Solution

Verified by Experts

From the slow step, we write rate `= k_(2)[E][C]`
From the first step, we get `K_(eq) = (k_(1))/(k_(2)) = ([E])/([A][B]) rArr [E] = K_(eq)[A][B]`
Hence, rate `= k_(3)K_(eq)[A][B][C] = k[A][B][C]`
Promotional Banner

Similar Questions

Explore conceptually related problems

The mechanism of the reaction, 2NO+O_(2)rarr2NO_(2) is NO+NO underset(k_(-1))overset(k_(1))rarr N_(2)O_(2) (fast) N_(2)O_(2)+O_(2)overset(k_(2))rarr2NO_(2) (slow) The rate constant of the reaction is

Many thermal decomposition and isomerization reaction follows the mechanism given below : (i) A + M underset(k_(-1))overset(k_(1))hArr A + M (ii) A overset(k_(2))rarr prducts Where A represents the molecule undergoing the thermal decomposition or isomerization reaction, and M represents any other moelcule. Steady state rate law will be :

The reaction NH_(4)^(+)+ OCN^(-) rarr OC (NH_(2))_(2) , proceeds through the following mechanism. NH_(4)^(+)+OCN^(-) overset(k_(eq))rarr NH_(4) OCN (fast) NH_(4)OCN overset(k) rarr OC(NH_(2))_(2) (slow) The rate constant of the reaction is

In the following reaction the compound 'D' is overset(KMnO_(4)//OH^(-))rarr A overset(SOCl_(2))rarr B overset(NaN_(3))rarr Coverset("Heat")rarrD