The number density of gas molecules is defined as the number of molecules present per unit volume. At a certain location in the space above Earth, the number density is m−3 and the atmospheric pressure at that location is N/m2. What is the temperature at this location?
A tank with a volume of 6.75 m3 contains mol of compressed oxygen. Determine the gauge pressure inside the tank if the root-mean-square speed of the oxygen molecules is 524 m/s. Use a value of 32.0 g/mol for the molar mass of molecular oxygen.
A mole of dry air consists of nitrogen, oxygen, and argon, with trace amounts of other gases. A tank of compressed dry air at a temperature of 293 K has a volume of 1.76 cubic feet. The compressed air has a gauge pressure of 2 200 pounds per square inch. How many moles of oxygen does the compressed air contain?