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Standard XII
Chemistry
Dalton's Law of Partial Pressures
What is Graha...
Question
What is Graham's law of diffusion?
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Solution
Graham's law of diffusion:
It was formulated by Scottish physical chemist Thomas Graham in 1848.
Graham found experimentally that the rate of diffusion of a gas is inversely proportional to the square root of the mass of its molecular mass.
R
a
t
e
1
R
a
t
e
2
=
M
m
Here, Rate 1 is the rate of diffusion of the first gas (volume or number of moles per unit time).
Rate 2 is the rate of diffusion of the second gas.
M is the molar mass of gas 1.
m is the molar mass of gas 2.
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