A gas having NA (6.02*10^23)atoms with diatomic nature.Find the volume in dm3 occupied by the gas? a)11.2 b)22.4 c)7.46 d)5.60

1 Answer
Feb 18, 2018

Well, you gots ONE mole of atoms....the which as the diatomic molecule occupies a volume of #11.2*dm^3#...

Explanation:

But by specification, you got HALF a mole of molecules...i.e. each molecule of #X_2# specified 2 ATOMS of #X#. And note that most gases, dihydrogen, dioxygen, dinitrogen, dihalogen, certainly the gases with any chemistry, are diatomic, i.e. bimolecular.

Now it is a fact, that under the conditions, the molar volume of an ideal gas is #22.4*L#...so you got HALF a mole of gaseous molecules, and thus a VOLUME of #11.2*dm^3#. Capisce?