1.

Two separate bulbs contain ideal gases A and B respectively. The density of gas A is twice that of gas B and the molar mass of gas A is half that of gas. If the two gases are at the same temperature, the ratio of pressure of A to that of B is :

Answer»

1.4
2.2
3.`1//4`
4.`1//2`

Solution :`p = ( DRT)/( M )`
`p_(X) = ( d_(x) RT)/( M_(x))`
`p_(Y) = ( DY RT)/( M_(y))`
`( P_(x))/( P_(y)) = ( d_(x) //d_(y))/( M_(x) //M_(y)) = ( 2)/((1)/(2))= 4`


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