Gaseous StateHard
Question
A quantity of gas is collected in a graduated tube over the mercury. The volume of gas at 18oC is 50 ml and the level of mercury in the tube is 100 mm above the outside mercury level. The barometer reads 750 torr. Hence , volume at S.T.P. is approximately :
Options
A.22 ml
B.40 ml
C.20 ml
D.44 ml
Solution
Net pressure of gas = Pgas
Pgas = 650 mm.


V2 = 40.11 ml P1 = 9 atm P2 = 6 atm
V1 = 5l V2 = 10 l
Pgas = 650 mm.
V2 = 40.11 ml P1 = 9 atm P2 = 6 atm
V1 = 5l V2 = 10 l
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