A rigid cylinder at contains of He and of Ne

CHEMISTRY · Single correct · US High School · Chemistry · States of Matter & Gases · States of Matter & Gases

Problem

A rigid

5.00\,\text{L}

cylinder at

298\,\text{K}

contains

0.60\,\text{atm}

of He and

0.90\,\text{atm}

of Ne. An unknown ideal gas X is then injected into the cylinder, and after the system returns to

298\,\text{K}

the total pressure rises to

2.40\,\text{atm}

. Assuming the amounts of He and Ne remain unchanged, what is the mole fraction of gas X in the final mixture? (a) 0.420 (b) 0.375 (c) 0.250 (d) 0.600

Related theory

Gaseous State
States of Matter

Browse the problem library