A compound exists in the gaseous phase both as monomer

Chemistry Gaseous State ( Not In Syllabus ) General Single Correct MCQ

Published on: August 12, 2026

and dimer (A2). The atomic mass of A is 48 and molecular mass of A2 is 96. In an experiment 96 g of the compound was confined in a vessel of volume 33.6 litre and heated to 273ºC. The pressure developed if the compound exists as dimer to the extent of 50 % by weight under these conditions will be : 1 atm

2 atm

1.5 atm

4 atm

Text Solution

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The correct answer is:

Since A and A2 are two states in gaseous phase having their wt ratio 50% i.e. 1 : 1

moles of Moles of

Total mole = 3/2

P = nRT/V.

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