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Relationship between Temperature, Pressure and Volume

Three contain...

Question

Three containers A, B and C of equal volume, contain $N_{2}$ , $N O_{2}$ and $C O_{2}$ respectively, at the same temperature and pressure. The ascending order of their masses is:

A

A, C, B

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B

C, A, B

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C

B, C, A

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D

C, B, A

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Solution

The correct option is A A, C, B
Since the ideal gas equation is same for all the gases, there will be same number of moles of each gas. Hence, the ascending order of their masses is the ascending order of their molecular weight.
Molecular weight of $N_{2} =$ 28
Molecular weight of ${N O}_{2} =$ 46
Molecular weight of ${C O}_{2} =$ 44
Hence, the correct order would be A, C, B .

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