a
the mass of a unit volume of the gas compared to an equal volume of water vapour
b
the mass of a unit volume of the gas compared to an equal volume of hydrogen
c
the mass of a unit volume of the gas compared to an equal volume of oxygen
d
the mass of a unit volume of the gas minus the vapour pressure of water
e
two times the relative molecular mass of the gas
Explanation
Correct Option
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Dave333
4 years ago
They are quite right SOMETIMES,Vapour density is the density of a vapour in relation to that of hydrogen. It may be defined as mass of a certain volume of a substance divided by mass of same volume of hydrogen. vapour density = mass of n molecules of gas / mass of n molecules of hydrogen.
