A gas occupies a volume of 40 litres at 27⁰c and 380mm of pressure. Calculate its volume at STP
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Answer:
Ideal gas equation,
PV=nRT
So when no of moles of gas are constant
T
1
P
1
V
1
=
T
2
P
2
V
2
=
(273+47)
V
1
×640
=
(273+27)
620×300
V
1
=
640×300
620×300×320
=310cc
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