Gas Law Apparatus is ideal for studying the relationship between the pressure, temperature and volume of a gas. By turning the piston, volume of the air can be easily changed and the pressure, temperature can be noted from the gauges. The gas law (PV=nRT) can be confirmed by repeating the process. Includes instruction manual.
Features
Sealed Gas Container: A transparent cylinder or tube (often glass or strong acrylic) with one end sealed, which contains the fixed amount of gas (usually air). Movable Piston or Plunger: A tightly fitting, movable piston within the cylinder that can be used to change the volume of the trapped gas. This movement is often controlled by a manual crank or hand-operated pump/screw mechanism. Volume Measurement Scale: A graduated scale or ruler along the transparent cylinder to accurately read the volume (or length of the air column, which is proportional to volume) of the enclosed gas. Pressure Measuring Device: A pressure gauge or manometer (which may use a liquid like oil or mercury, or be a digital sensor) to measure the pressure of the gas inside the container. Airtight Seals and Valves: The system is designed to be airtight to ensure a fixed mass of gas is trapped. A valve is usually included to initially let in gas or release pressure to set the starting conditions. Sturdy Base/Mounting: The apparatus is usually mounted on a stable base or support stand to ensure the experiment is conducted safely and to prevent tipping.