A container of gas molecules is at a pressure of 2 atm and has a mass density
of 1.7 grams per liter. All of the molecules in the container are diatomic nitrogen molecules with
an atomic weight of 28 grams per mole. What is the average speed of the nitrogen
molecules in the container? Here we define the average speed as the root-mean-square
velocity (RMS velocity = vrms) of the center of mass of the molecule.
vrms = m/s