by on January 7, 2023

Volume Expansivity

Defination of Volume expansivity.

The volume or cubic expansivity of a gas at constant pressure is the fraction of its volume at Zero Degree by which the volume of a fixed mass of gas expands per kelvin rise in temperature.

If a unit volume of a  gas is used , the change in volume from  zero degree to   -273 degree  is approximately 1cm3  because at -273 degree, the volume is expected to be zero theoretically from Charles’ Law.

The slope of the graph of Charles’ Law =dV/dT



Putting absolute temperature into consideration,

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