by on October 30, 2020

Cubic expansivity of a gas

Defination of Cubic expansivity

The slope of the graph of Charles’ Law =




Putting absolute temperature into consideration,


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




Therefore , Charles’ Law can be re-stated with respect to this analysis.

The volume of a given mass of a gas increases by   of its original volume at  for every degree change in temperature, provided the pressure remain the same.



The volume of a given mass of gas at  is 400 . What is the volume at     ?








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