MHT CET2016ChemistryChemical Kinetics
The average rate of reaction 2 S O 2 ( g ) + O 2 ( g ) → 2 S O 3 ( g ) is written as
Options
- A∆ S O 2 ∆ t
- B- ∆ O 2 ∆ t
- C1 2 ∆ S O 2 ∆ t
- D∆ S O 3 ∆ t
Correct answer
B. - ∆ O 2 ∆ t
Step-by-step solution
Reaction is 2 S O 2 ( g ) + O 2 ( g ) → 2 S O 3 ( g ) Average rate of consumption of S O 2 = 2 ∆ S O 2 ∆ t Average rate of consumption of O 2 = ∆ O 2 ∆ t Average rate of formation of S O 3 = 2 ∆ S O 3 ∆ t Average rate of reaction = - 1 2 ∆ S O 2 ∆ t = - ∆ O 2 ∆ t = 1 2 ∆ S O 3 ∆ t Among the four choices, only - ∆ O 2 ∆ t is correct.