Question

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what is graham law of diffusion. with eg

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#CHERRY BLOSSOM​

Answer 1

ANSWER

Graham's law states that the rates of diffusion of two gases are inversely proportional to the square roots of their molar masses at the same temperature and pressure: diffusion is the term used to describe the passage of a gas through a tiny orifice into an evacuated chamber.

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Answer 2

$\huge\mathfrak\blue{answer}$

Graham's Law which is popularly known as Graham's Law of Effusion, was formulated Thomus Graham in the year 1848. Thomas Graham experimented with the effusion process and discovered an important feature: gas molecules that are lighter will travel faster than the heavier gas molecules.

According to Graham's Law, at constant pressure and temperature, molecules or atoms with lower molecular mass will effuse faster than the higher molecular mass molecules or atoms. Thomas even found out the rate at which they escape through diffusion. In other words, it states that rate of effusion of gas is inversely proportional to the square root of its molecular mass. This formula is generally used while comparing the rates of two different gases at equal pressures and temperatures. Formula can be written as:

Rate

2

Rate

1

=

M

1

M

2

M

1

is the molar mass of gas 1

M

2

is the molar mass of gas 2

Rate

1

is the rate of effusion of the first gas

Rate

2

is the rate of effusion for the second gas

It states that rate of diffusion or effusion is inversely proportional to its molecular mass.