Assume that in a certain automobile the exhaust gas has a carbon monoxide mole fraction of 0.0140, a temperature of 500 K, and is at normal pressure when it reaches the catalytic converter (d_CO = 3.72 times 10^-10 m) (a) Find the mean free path between CO-CO collisions of one CO molecule in the exhaust gas. (Ignore intervening molecules.) (b) Find z, the mean collision rate of CO-CO collisions for one CO molecule in the exhaust gas of this automobile.
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