Charles' Law
A perfect gas and Charles' law
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Charles' law states that in a perfect gas where the mass and pressure is kept constant, the volume vary directly with the absolute temperature.
Charles' Law can be expressed as
V/T = constant
or
V1/T1 = V2/T2
where
V = volume (m3, ft3...)
T = absolute temperature (K, R)
Example Charles' Law
A gas occupies a volume of 2 litres at 0 oC. The volume at it occupies at 100 oC can be calculated as
V2 = T2 V1/T1
= 373 K 2 litres / 273 K
= 2.73 litres
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