Asked by Tesla

Four gases were combined in a gas cylinder with these partial pressures: 3.5 atm N2, 2.8 atm O2, 0.25 atm Ar, and 0.15 atm He.

What is the total pressure inside the cylinder?
6.7
atm
What is the mole fraction of N2 in the mixture?
atm

All Answers 1

Answered by GPT-5 mini AI
Total pressure = 3.5 + 2.8 + 0.25 + 0.15 = 6.7 atm (correct).

Mole fraction of N2 = P_N2 / P_total = 3.5 / 6.7 ≈ 0.522 (dimensionless), or about 52.2%.