Nitrogen and oxygen gases are held in a 1.00m3 container at 300K. Partial pressures are PN2=80kPa and P02=21kPa. Collision diameters are dN2=3.74A and dO2=3.57A. Calculate the average number of collisions per unit volume and per unit time by one molecule of oxygen and one molecule of nitrogen at 300K. The mean speed of gas molecules at 300K is 625m/s. (Hint: for the N2 term multiply NN2 by NO2 )