The decreasing order of rate of effusion of given gases is,
Further Explanation:
Effusion is the process by which molecules of gas is traveled through a small hole from high pressure to the low pressure. According to graham’s law, effusion rate of a gas is inversely proportional to the square root of the molar mass of gas.
Where is the molar mass of a gas.
The atomic mass of argon gas (Ar) is 40 g/mol.
The atomic mass of helium gas (He) is 4 g/mol.
The molar mass of propane gas is calculated as follows:
The order of molar mass of gases is He < Ar < .
And, since the rate of effusion a gas is inversely proportional to the square root of the molar mass of gas, therefore, the decreasing order of rate of effusion of given gases is, He > Ar >
Learn more:
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Answer details:
Grade: Senior School
Subject: Chemistry
Chapter: Ideal gas equation
Keywords: Effusion, rate of effusion, Ar, C3H3, He, molar mass, atomic mass, rate of effusion gases, atomic mass of argon, atomic mass of helium gas, molar mass of propane gas.