DALTON'S LAW and GRAHAMS LAW

The average kinetic energy of the molecules is determined only by the absolute temperature of the gas.

• TRUE

• FALSE

In which of the following gas mixtures of N₂(g) and He(g) is the partial pressure of He(g) the greatest?

• 2 moles N₂(g) and 3 mole He(g)

• 3 moles N₂(g) and 1 mole He(g)

• 4 moles N₂(g) and 2 mole He(g)

• 5 moles N₂(g) and 5 mole He(g)

Bottle A contains ammonia gas, NH₃ (M = 17) which has a pungent odor

Bottle B contains hydrogen sulfide, H₂S (M = 34) which has an odor like that of a rotten egg.

Which odor will they sense first?

• Bottle A

• Bottle B

• Neither of the two will be perceived.

• Insufficient data.

It is the process by which a gas under pressure escapes from one compartment of a container to another by passing through a small opening.

• Gas diffusion

• Gas effusion

Calculate the speed of H₂ gas at 300K.

Use R = 8.314 J/K·mol.

Molar mass H₂ = 2.016 x 10^-3 Kg/mol

Express your answer in 4SF and correct units of measurement.