Ascuba 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?
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