AIIMS 2017
- Exam
- AIIMS
- Year
- 2017
- Subject
- Chemistry
- Chapter
- Chemical Kinetics
AIIMS 2017 · Chemistry · Chemical Kinetics
The chemical reaction, 2 O_3 3 O_2 proceeds as follows : Step 1:...
The chemical reaction, proceeds as follows :
Step 1: .(fast)
Step .(slow)
The rate law expression should be
Options
- A
- B\left[\mathrm{O}_3\right]^2
- C
- Dunpredictable.
Correct answer
B. \left[\mathrm{O}_3\right]^2
Step-by-step solution
As the slowest step is the rate determining step, hence from step 2 ,
From step 1,
From eq. (i) and (ii), r=k K_{e q} \frac{\left[\mathrm{O}_3\right]^2}{\left[\mathrm{O}_2\right]}=k^{\prime}\left[\mathrm{O}_3\right]^2\left[\mathrm{O}_2\right]^{-1} \quad\left[\because k^{\prime}=k K_{e q}\right]
From step 1,
From eq. (i) and (ii), r=k K_{e q} \frac{\left[\mathrm{O}_3\right]^2}{\left[\mathrm{O}_2\right]}=k^{\prime}\left[\mathrm{O}_3\right]^2\left[\mathrm{O}_2\right]^{-1} \quad\left[\because k^{\prime}=k K_{e q}\right]