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PLEASE AND THANK YOU
If a sample of He effuses at a rate of 30 mol per hour at 45 degrees C, which of the gases below wil effuse at approx. one-half the rate under the same conditions?
A. CH4
B. O3
C. N2
D. H2

Respuesta :

Answer:

[tex]CH_{4}[/tex]

Explanation:

We know from laws of diffusion that [tex]rate\alpha\sqrt{\frac{T}{m} }[/tex].

In the given question , it is said that temperature is same in both the cases .

So for rate to become half , molecular mass must be 4 times,ie,

Mass of required gas = 4×mass of He=4×4=16.

Therefore the gas is [tex]CH_{4}[/tex]

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