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 cond…

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asked Jun 5, 2021 141k views

1 Answer

Ddieppa · Answer 1 · 2021-06-11T15:10:09+0000

Answer:

Step-by-step explanation:

We know from laws of diffusion that
$rate\alpha\sqrt{(T)/(m) }$ .

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
CH_(4)