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Question
A cylinder of 20 liters capacity contains gas at 100 atmospheric pressure. How many flasks of 200 cm3capacity can be filled from it at 1-atmosphere pressure, temperature remaining constant?
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Solution
P = 100 atm
V = 20 litres
P1 = 1 atm
V1 = ?
T = T1
Using equation,
`"PV"/"T" = ("P"_1 "V"_1)/"T"_1`
`(100 xx 20)/"T" = (1 xx "V"_1)/"T"`
V1 = 2000 litres = 2 m3 (1000 lit = 1m3)
Volume of one flask = `200/(100xx100xx100) "m"^3`
Number of flasks = `(2xx1000000)/200 = 10000`
Number of flasks = 10000
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