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Densities of two gases are in the ratio ...

Densities of two gases are in the ratio `1: 2` and their temperatures are in the ratio `2:1`, then the ratio of their respective pressure is

A

`1:1`

B

`1:2`

C

`2:1`

D

`4:1`

Text Solution

Verified by Experts

The correct Answer is:
A
`d_1/d_2 = 1/2, T_1/T_2 = 2/1 therefore P_1/P_2 = V_2/V_1 xx T_1/T_2 = (T_1 d_1)/(T_2 d_2)`
`P_1/P_2 = 2/1 . 1/2 = 1/1`
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