The total pressure in a tank is filled with a mixture of gases : Oxygen, Helium, and Argon is 15.3 atm. The P(He) = 3.2 atm, P(O) = 7.4 atm, what is the P(Ar) in the tank?

Answer 1

Total pressure = sum of pressure of all gases

15.3 atm = 3.2 atm + 7.4 atm + P(Ar)

P(Ar) = 15.3 atm - 32. atm - 7.4 atm

P(Ar) = 4.7 atm