Question

The reaction N2 + O2 $\rightarrow$2NO, follows the kinetics Rate .The order of reaction when both N2 and O2 are in small amount, N2 is in large excess as compared to O2 and both N2 and O2 are in large excess are

• A. 2, 1 and 2
• B. 2,1 and 1
• C. 2, 1 and 0
• D. 1, 1 and 0

Answer 1

Answer: (A)

2, 1 and 2

Answer 2

When both N2 and O2 are in small amount or in large excess, the rate law obeyed will be

Rate \order = 1 + 1 = 2

When N2 is in large excess as compared to O2, the rate law will reduce to Rate\ order w.r.t O2 = 1

Order w.r.t N2 = 0

Overall order = 1 + 0 = 1

So, choice (1) is the correct answer.