Calculate the ratio of effusion rates between helium and radon gases

The ratio of rate of effusion of helium and radon is 7.45

Explanation:

To calculate the rate of diffusion of gas, we use Graham's Law.

This law states that the rate of effusion or diffusion of gas is inversely proportional to the square root of the molar mass of the gas. The equation given by this law follows the equation:

We are given:

Molar mass of Helium = 4.00 g/mol

Molar mass of Radon = 222.1 g/mol

Taking their ratios, we get:

Hence, the ratio of rate of effusion of helium and radon is 7.45