Arrange the Following Gases in Order of Increasing Rate of Effusion

question 127

Multiple Choice

Arrange the following gases in order of increasing rate of effusion: C₂H₆, Ar, HCl, and PH₃.

• A) Ar < HCl<PH₃ < C₂H₆
• B) C₂H₆ < PH₃ < HCl < Ar
• C) Ar < PH₃ < C₂H₆ < HCl
• D) C₂H₆ < HCl < PH₃ < Ar
• E) Ar < PH₃ < HCl < C₂H₆

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