Final answer:
To find the rate of formation of NO₂, multiply the rate of consumption of O₂ by 4, based on the 4:1 stoichiometric ratio from the chemical equation.
Step-by-step explanation:
To get the rate of formation of NO, we need to consider the stoichiometry of the chemical reaction involved. According to the balanced chemical equation provided, 4 moles of NO₂ are produced for every 1 mole of O₂ consumed. Therefore, to get the rate of formation of NO₂, we must multiply the rate of consumption of O₂ by the stoichiometric ratio which is 4:1. This means that if O₂ is being consumed at a certain rate, the formation of NO₂ is happening at four times that rate.