The Reaction of NO and O₂ Produces NO₂

Multiple Choice

The reaction of NO and O₂ produces NO₂. 2 NO(g) + O₂(g) → 2 NO₂(g)
The reaction is second-order with respect to NO(g) and first-order with respect to O₂(g) .At a given temperature,the rate constant,k,equals 4.7 × 10² M^-2s^-1.What is the rate of reaction when the initial concentrations of NO and O₂ are 0.025 M and 0.015 M,respectively?

A) 2.6 × 10^-3 M/s
B) 4.4 × 10^-3 M/s
C) 0.18 M/s
D) 2.0 × 10^-8 M/s
E) 3.8 × 10² M/s