Identical rigid vessels contain two different ideal gases. Vessel I contains pur

Question

Identical rigid vessels contain two different ideal gases. Vessel I contains pure gas "A" while vessel 2 contains pure gas "B" The molecular weight of "A" is twice that of "B."If the pressures in vessels 1 and 2 are equal (Pi = P2) and gas temperatures in vessels 1 and 2 are equal (Ti = T2), what can I* said about the molar densities (g moles/volume) of gas in the two vessels if both gases can be assumed ideal? Both have the same molar density since the temperature and pressure are the same flip molar density in vessel 1 is twice the density in vessel 2 because the molecular weight of gas "A" density ii vessel 1 is half the density in vessel 2 because the molecular weight of gas A The molar density because the volume of the vessels are not specified The molar density of the two gases can never be equal since the molecular weights of A and B

Explanation / Answer

Molar density is defined as moles per unit volume or, n/V.

For ideal gas:

PV=nRT

Thus, n/V=P/RT

Thus molar density has no relation with mol wt. and at same pressure and temperature it is same.

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