This Charles' Law apparatus is a simple way of demonstrating that the volume of a fixed mass of gas is proportional to its absolute temperature. The Charles Law apparatus does not use mercury so is safe. Each unit is supplied with an easy to read oil bead and clear measurements ready to use.

• Height 33.5cm x width 40cm x depth 1.5cm
• Capillary tube 0 to 20cm reading
• Thermometer -10 to 70°C

Content: 10 x Charles Law apparatus, 1 x Gratnells tray