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The density of gas A is twice that of B ...

The density of gas `A` is twice that of B at the same temperature the molecular weight of gas B is twice that of A. The ratio of pressure of gas A and B will be :

A

`1:6`

B

`1:1`

C

`4:1`

D

`1:4`

Text Solution

Verified by Experts

The correct Answer is:
c
(c) `d_(A)=2d_(B)," "3M_(A)=M_(B)," " PM=dRT`
`=(P_(A))/(P_(B))xx(M_(A))/(M_(B))xx(d_(A))/(d_(B))xx(RT)/(RT)`
`=(P_(A))/(P_(B))xx(1)/(2)=2`
`(P_(A))/(P_(B))=(4)/(1)`
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