9.9 The Molecular Structure of Liquids 439
j.The mean value of a velocity component is equal to the
mean speed of the molecules of a dilute gas.k.The most probable value of a velocity component is
equal to the most probable speed of the molecules of a
dilute gas.l.The mean molecular kinetic energy of a gas at a fixed
temperature is independent of the molecular mass of
the gas.9.84Assume that a certain sample of polluted air has the
following composition by moles: nitrogen, 76.08%;
oxygen, 20.41%; water vapor, 2.57%; argon 0.910%;
carbon dioxide, 0.0306%; ozone, 0.0004%; carbon
monoxide, 0.0005%. The air is maintained at a temperature
of 300 K and a pressure of 1.000 bar.
a.Find the number of collisions a single ozone molecule
undergoes with carbon monoxide molecules.
b.Find the number of ozone–carbon monoxide collisions
per cubic meter per second.
c.Find the number of ozone–oxygen collisions per cubic
meter per second.
d.Find the number of nitrogen–nitrogen collisions per
cubic meter per second.