Nitrogen dioxide reacts with carbon monoxide according to the following equation

Question

Nitrogen dioxide reacts with carbon monoxide according to the following equation.

NO2(g) + CO(g) NO(g) + CO2(g)

This reaction is second order in [NO2], and the rate constant is 0.67 M1s1. Which of the following conclusions can you draw about this reaction?

a The half-life depends on [CO]0. b The half-life is independent of [NO2]0. c A plot of ln [CO] versus time will be a straight line. d A plot of 1/[NO2] versus time will be a straight line.

Nitrogen dioxide reacts with carbon monoxide according to the following equation.

NO2(g) + CO(g) NO(g) + CO2(g)

This reaction is second order in [NO2], and the rate constant is 0.67 M1s1. Which of the following conclusions can you draw about this reaction?

Explanation / Answer

if second order...

The half-life depends on [CO]0. --> false since it is dependent of NO2

The half-life is independent of [NO2]0. --> TRUE since t 1/2 = 1/k(NO2)

A plot of 1/[NO2] versus time will be a straight line. TRUEE

A plot of ln [CO] versus time will be a straight line. FALSE, this is for first order

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