Question

Arrange the gases Ar (Argon), Ne (Neon), H2 (Hydrogen), NO (Nitric Oxide), and C5H10 (Pentane) in order from the lowest rate of effusion to the highest based on their respective molar masses.

Answer 1

The rate of effusion of a gas is inversely proportional to the square root of its molar mass. This means that the gas with the lowest molar mass will have the highest rate of effusion, order from the lowest rate of effusion to the highest is: Hydrogen (H2), Nitric Oxide (NO), Neon (Ne), Argon (Ar), Pentane (C5H10).

Step-by-step explanation:

The rate of effusion of a gas is inversely proportional to the square root of its molar mass. This means that the gas with the lowest molar mass will have the highest rate of effusion, and the gas with the highest molar mass will have the lowest rate of effusion. Based on the given gases and their respective molar masses: Hydrogen (H2) - molar mass = 2 g/mol Neon (Ne) - molar mass = 20 g/mol.

Argon (Ar) - molar mass = 40 g/mol Nitric Oxide (NO) - molar mass = 30 g/mol Pentane (C5H10) - molar mass = 72 g/mol. The order from the lowest rate of effusion to the highest is: Hydrogen (H2) Nitric Oxide (NO) Neon (Ne) Argon (Ar) Pentane (C5H10).