Nitrogen oxide is a pollutant in the lower atmosphere that irritates the eyes and lungs

Chapter 14, Problem 74

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Nitrogen oxide is a pollutant in the lower atmosphere that irritates the eyes and lungs and leads to the formation of acid rain. Nitrogen oxide forms naturally in atmosphere according to the endothermic reaction: N2(g) + O2(g) m 2 NO(g) Kp = 4.1 * 10-31 at 298 K Use the ideal gas law to calculate the concentrations of nitrogen and oxygen present in air at a pressure of 1.0 atm and a temperature of 298 K. Assume that nitrogen composes 78% of air by volume and that oxygen composes 21% of air. Find the natural equilibrium concentration of NO in air in units of molecules>cm3 . How would you expect this concentration to change in an automobile engine in which combustion is occurring?

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