Tell which gas of each pair below would diffuse more rapidly at the same temperature and pressure? He,Ar UF6, Cl2 H2,O2,

Question

Tell which gas of each pair below would diffuse more rapidly at the same temperature and pressure? He,Ar  UF6, Cl2   H2,O2,

J.R. S. · Accepted Answer

Look up and read about Graham's Law of effusion.

The heavier the gas is, the slower it will diffuse.

He vs Ar: He = 4 g / mole; Ar = 40 g / mol. He will diffuse faster

UF6 vs Cl2: UF6 = 352 g / mol; Cl2 = 71 g / mol. Cl2 will diffuse faster

H2 vs O2: H2 = 2 g / mol; O2 = 32 g / mol. H2 will diffuse faster

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