Two gases A and B present separately in two vessels X and Y at the same temperature and pressure with molecular weights M and 2M respectively are effused out. The orifice in vessel X is circular while that in Y is a square. If the radius of the circular orifice is equal to that the length of the square orifice, the ratio of rates of effusion of gas A to that of gas B is

Two gases A and B present separately in two vessels X and Y at the sam

1.	Two gases A and B present separately in two vessels X and Y at the same temperature and pressure with molecular weights M and 2M respectively are effused out. The orifice in vessel X is circular while that in Y is a square. If the radius of the circular orifice is equal to that the length of the square orifice, the ratio of rates of effusion of gas A to that of gas B is
Answer» `PI sqrt(2)` `sqrt(pi/2)` `2 pi` `sqrt(2/pi)` Solution :`gamma ALPHA A/(sqrt(M)) , (gamma_x)/(gamma_y) = (pi r^2)/(r^2) xx sqrt((2M)/(M)) = sqrt(2) pi`