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If the number of molecules of SO(2) (ato...

If the number of molecules of `SO_(2)` (atomic weight=64) effusing through an orifice of unit area of cross-section in unit time at `0^(@)C` and 1 atm pressure in n. the number of He molecules (atomic weight=4) effusin under similar conditions at `273^(@)C` and 0.25 atm is:

A

`n/sqrt2`

B

`nsqrt2`

C

2n

D

`n/2`

Text Solution

Verified by Experts

The correct Answer is:
A
`r_1/r_2=p_1/p_2sqrt((T_2M_2)/(T_1M_1))implies n/x=1/0.25sqrt((2xx273xx4)/(273xx64))implies x=n/sqrt2`
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