Two separate bulbs contains ideal gases P and q, respectively maintained at the same temperature. The density of gas P is twice of that of the Q, and the molecular weight of the gas P is half of that of the gas Q. The ratio of the pressure of gas P to that of gas Q is

Options

A. 2
B. `1//2`
C. 4
D. `1//4`

Answer

C

Explanation

`p = (dRT)/(M) :. (p_(P))/(d_(Q)) = (d_(P))/(d_(Q)) xx (M_(Q))/(M_(P)) = 2 xx (1)/(1//2) = 4`