Charle's Law

Charle's Law

Charles' Law describes "How Gases tend to expand when heated" and gives the direct relationship of Temperature and Volume of a gas.

Charle's Law states that " At a constant Pressure, the Volume of a confined gas is DIRECTLY Proportional to the Absolute Temperature " i.e ,V α T , thus if the Temperature of a gas is Doubled, it's Volume is also Doubled.

In a Simple one statement Charle's Law can be stated as " As the Temperature Increases the Gas Expands "

This occurs because as the temperature increases,the Gas molecules begins to move around quickly, hit the walls of the container with forces, resulting in the increase in Volume.

The Law was discovered by Jacques Charles in 1780's,But was first published in 1802 by a French Philosopher Joseph Louis Gay-Lussac who credited the discovery of an unpublished work.

Mathematically the Law can be stated as :-

Volume = Constant x Temperature or

V = kT .

Charle's Law must be used only with the Kelvin Temperature scale as this scale is an Absolute Temperature scale.