Question

State True or False.
Nitrogen diffuses faster than oxygen through an orifice.
A. True
B. False

Answer 1

Hint-We must know about Graham's law of diffusion. Graham's law states about the diffusion and effusion of gas molecules. So we can use graham’s law to verify that Nitrogen diffuses faster than oxygen through an orifice.

Complete step by step answer:
Let’s consider Graham’s Law of Diffusion. Now, we should look through Graham’s Law of Diffusion, which affirms that the speed or rate of diffusion of a gas is inversely equivalent to the square root of gas molecular mass under the same conditions of pressure and temperature.
So, now we know that the molecular mass of nitrogen is \[14.0067{\text{ }}u\]and the molecular mass of oxygen is\[15.999{\text{ }}u\].
Therefore, we can say that the Molecular mass of Nitrogen is lesser than molecular mass of Oxygen
As we can see that nitrogen gas will diffuse faster than oxygen due to its lower molecular weight, we can now conclude that the above statement is true.
Additional Information:
As we all know that diffusion is the process by which particles of matter flow from a higher concentration to a lower concentration. For instance, when we drop a sugar cube in a glass of water then the tiny particles of sugar get mingled up in the glass of water as the molecules move from the higher concentration of sugar over the lower concentration of water. This is the basic concept we must understand to solve these questions.

Note:
We need to remember that the lighter the molecular weight of the gas, the faster is its rate of diffusion.
With the help of Graham’s Law, we can determine the molecular mask of any unknown gas.