A 4:1 molar mixture of He and is contained in a vessel at 20 bar pressure

CHEMISTRY · Subjective · A Level · Chemistry · Amount of substance · Amount of substance

Problem

A 4:1 molar mixture of He and CH4\text{CH}_4 is contained in a vessel at 20 bar pressure. Due to a hole in the vessel, the gas mixture leaks out. What is the composition of the mixture effusing out initially? (IIT 1994)

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