The mean free path of an oxygen molecule is 3.0*10^-5 m, when the gas is at a pressure of 30 Pa and a temperature of 275 K. The molecular mass of...

The mean free path of an oxygen molecule is 3.0*10^-5 m, when the gas is at a pressure of 30 Pa and a temperature of 275 K. The molecular mass of oxygen is 32.0 g/mol and the Boltzmann constant is 1.38*10^23 J/K, Avogadro's number is 6.02*10^23 molecules/mole, and the ideal gas constant is R = 8.314 J/mol*K = 0.0821 L*atm/mol*K. Assuming that the molecules are moving at their root-mean-square speeds, the average time interval between collisions of an oxygen molecule is closest to