The reaction 2NO(g) + O2(g) 2NO2(g) is second order in NO and first order in O2. When [NO] = 0.8 M and [O2] = 3.7 M, the observed rate of the reaction is 0.00022022 M/s. (a) What is the value of the rate constant? (d) What is the rate of reaction when [NO] = 0.1 M and [O2] = 0.47 M?

a)  

b)

Explanation:

Hello,

In this case, given that the reaction is second order in NO and first order in O2, the rate law is written as follows:

In such a way, for a rate law of 0.00022022 M/s and the concentrations of NO and O2 0.8M and 3.7M respectively, the rate constant is:

Thus, for the new concentrations of NO and O2 0.1M and 0.47M respectively, the rate is:

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