A mixture of `O_(2)` and gas `"Y"` `( mol. wt. 80)` in the mole ratio `a:b` has a mean molecular weight 40. What would be mean molecular weight, if the gases are mixed in the ratio `b:a` under identical conditions ? ( gases are ideal)

A mixture of methane and ethane in the molar ratio of x:y has a mean molar mass of 20. what would be the mean molar mass, if the gases are mixed in the molar ratio of y:x?

A mixture of methane and ethane in the molar ratio of x:y has a mean molar mass of 20. what would be the mean molar mass, if the gases are mixed in the molar ratio of y:x?

The rates of diffusion of gases A and B of molecular weight 36and 64 are in the ratio

Calculate the ratio of the mean free paths of the molecules of two gases having molecular diameters 1Å and 2Å . The gases may be considered under indentical conditions of temperature pressure and volume.

The rates of diffusion of gases A and B of molecular weights 100 and 81 respectvely are in the ratio of

Average molecular weight of a gaseous mixture which contains 80% by mole N_(2) & rest O_(2) gas is-

At 400K,the root mean square (rms) speed of a gas X (molecular weight=40) is equal to the most probable speed of gas Y at 60K . The molecular weight of the gas Y is :

A gas diffuses at a rate which is twice that of another gas B. The ratio of molecular weights of A to B is

The pressure in a bulb dropped from 2000 to 1500 mm Hg in 47 min when the contained oxygen leaked through a small hole. The bulb was then evacuated. A mixture of oxygen and another gas of molecular weight 79 in the molar ratio of 1:1 at a total pressure of 4000 mm of mercury was introduced. Find the molar ratio of the two gases remaining in the bulb after a period of 74 min .

The pressure in a bulb dropped from 2000 to 1500 mm Hg in 47 min when the contained oxygen leaked through a small hole. The bulb was then evacuated. A mixture of oxygen and another gas of molecular weight 79 in the molar ratio of 1:1 at a total pressure of 4000 mm of mercury was introduced. Find the molar ratio of the two gases remaining in the bulb after a period of 74 min .