Select the correct answer. Gases Helium Temperature Pressure 300 K 1.5 atm 2 L Ohelium and neon Argon argon and oxygen 273 K 1.5 atm Neon Volume 3L Which 2 gases contain the same number of particles? 300 K 1.5 atm 2 L Oxygen 350 K 2 atm 2 L Ohelium and argon neon and oxygen​