Key Features:

• A self-contained bench-top experiment – no power supply needed
• Highly visual experiment using a ‘liquid piston’ for reliability and accurate, repeatable results
• Simple and safe to use – needs no tools
• Includes a thermocouple and digital display to help maintain constant temperature and show how compression and decompression of a gas can aff ect its temperature
• Supplied with hand-operated pumps to compress or decompress the gas (air) above and below atmospheric pressure
• Can connect to TecQuipment’s Versatile Data Acquisition System (VDAS®)

Description:

• The bench-mounting equipment includes a back plate
  that holds two clear-walled cylinders containing oil
  (supplied)
• . Students use hand-operated pumps (supplied)
  to increase or decrease the pressure in the left-hand
  cylinder (the reservoir) which moves a ‘liquid piston’ of oil
  in the right-hand cylinder (the test cylinder). This piston
  compresses or decompresses a trapped column of air in
  the test cylinder.
• A digital indicator measures the change in height of the trapped air column. When multiplied by the cross-sectional area of the column, this gives the change in volume. A mechanical pressure gauge measures the pressure of the trapped air
• A thermocouple and digital display measure the temperature of the trapped air to make sure that students maintain a constant air temperature during tests.
• Students maintain a constant temperature while recording
  the changes in volume with applied pressure. They then
  plot the results to prove Boyle’s law.

Learning Outcomes:

• Demonstrations of gas temperature change during compression and decompression
• Proving Boyle’s law by experiment