Which list ranks the gasses in the correct order from the
slowest to the fastest rate of effusion?

D. chlorine, oxygen, nitrogen, hydrogen.

Explanation:

ν ∝ 1/√M

where ν is the rate of effusion and M is the atomic  or molecular mass of the gas particles.

O₂: 32.0 g/mol,

Cl₂: 70.906 g/mol,

N₂: 28.0 g/mol,

H₂: 2.0 g/mol.

So, the order from the slowest to the fastest rate of effusion is:

Chlorine, oxygen, nitrogen, hydrogen.

the answer is 0.8m.

by: nicholas