In: Physics
A scuba tank has a volume of 2000 cm3 . For very deep dives, the tank is filled with 50% (by volume) pure oxygen and 50% pure helium.
a.) How many molecules are there of each type in the tank if it is filled at 25 ∘C to a gauge pressure of 19 atm ?
Express your answers using two significant figures. Enter your answers numerically separated by a comma.
b.) What is the ratio of the average kinetic energies of the two types of molecule?
c.) What is the ratio of the rms speeds of the two types of molecule?