Charles Law

Imagine leaving a balloon in the car over night and its cold outside.You come back the next day and find the balloon to be shriveled up.This happened because the temperature of the helium in the balloon decreases and becomes less dense.The helium particles loose energy and become more concentrated, decreasing the volume.

A cylinder with a piston and a gas is put in a bath water.A mass is placed on top of the piston which results in a pressure on the gas.This mass is held constant, which means that the pressure on the gas is constant.The gas volume is measured as the temperature is increased, and volume vs temperature data points were plotted.This continued over a large range of temperatures.

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