A and B are two identical vessels. A contains 15 g ethane at 1 atm and 298 K. The vessel B contains 75 g of a gas X2 at same temperature and pressure. The vapour density of X2 is
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a
75
b
150
c
37.5
d
45
answer is A.
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Detailed Solution
Equate the number of moles of gases in A & B ( since volume is same)1530 =75MBMB=150 ; VDB=1502=75