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Comprehension-1 Two closed identical c...

Comprehension-1
Two closed identical conducting containers are found in the laboratory of an old scientist. For the vertification of the gas some experiments are performed on the two boxes and the results are noted.

Experimenet 1.
When the two containers are weighed `W_(A) = 225tg, W_(B) = 160 g` and mass of evacuated container `W_(C) = 100g`.
Experiment 2.
When the two containers are given same amount of heat same temperature rise is recorded. The pressure changes found are
`DeltaP_(A) = 2.5 atm, Deltap_(B) = 1.5 atm`.
Required data for unknown gas:
`|(underset("molar mass")(Mono)",He,Ne,Ar,Kr,Xe,Rd),(,4g,20g,40g,84g,131g,222g),(underset(molar mass)(Dia),H_(2),F_(2),N_(2),O_(2),CI_(2),),(,2g,19g,28g,32g,71g,)|`
Identify the gas filled in the container `A` and `B`.

A

`N_(2), Ne`

B

`He, H_(2)`

C

`O_(2),Ar`

D

`Ar,O_(2)`

Text Solution

Verified by Experts

The correct Answer is:
D
Since `n_(1) = (5)/(3) n_(2)`
Therefore `(125)/(M_(A)) = (5)/(3) ((60)/(M_(B)))`
(From experiment `1 : W_(A) = 125 gm & W_(B) = 60 gm)`
`rArr 5M_(B) = 4M_(A)`
The above relation holds for the pair -Gas `A : Ar` and Gas `B : O_(2)`
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