States of Matter - Result Question 30

####30. The rate of diffusion of methane at a given temperature is twice that of a gas X. The molecular weight of X is

(a) 64.0

(b) 32.0

(c) 4.0

(d) 8.0

(1990, 1M)

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Solution:

  1. rCH4rX=2=MX16MX=64


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