Question

Which gas effuses faster at the same temperature: molecular oxygen or atomic argon?

Answer 1

Answer:

molecular oxygen will effuse faster .

Answer 2

Oxygen will effuse faster than Argon at same temperature .

• RATE LAW OF EFFUSION :

      R1/R2  = $\sqrt{M2} /\sqrt{M1$

Molecular / atomic masses of O2 = 32 gm and Ar = 40gm respectively.

• According to law , Rate is inversely proportional to Mass
• As,     M of O2 < M of Ar

                  R1           > R2

Hence , O2 will effuse faster.

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