MODULE 3 UNIT 3Experiment 2CHARLES’ LAWThe volume of a given sample of gas at constant pressure is directly proportional to the temperature in kelvins. In other words, gases tend to expand when heated.IMPORTANT DEFINITIONSVolume: amount of three-dimensional space occupied by a substanceTemperature: measure of the random motions (average kinetic energy) of the components of a substancePressure: force per unit areaGO TO THIS WEBSITEWhat factors influence the pressure of a gas in a container?1.Familiarize yourself with the animation.2.There is a beaker containing a gas. It sits on a hotplate. A thermometer measures temperature in degrees Celsius. Click on the ‘Temperature’ button, above the thermometer. Now, you can adjust the temperature, by clicking on the buttons on the hotplate: LO = 60°C MED = 100°C HI = 140°C3.A pressure gauge measures pressure in kPa (kilopascals). 4.There is a plunger in the beaker that can be adjusted to make different volumes. Click on the ‘Volume’ button, above the pressure gauge.