4E20.20 Boyle's Law (V and P)

Demonstrate volume varies inversely with pressure. Add weights to top of device to increase pressure. The volume will decrease while temperature remains almost constant if done slowly. New device in picture on right will show temperature change on digital display if pressure increased rapidly.

Setup Requirements: Some assembly required. Open plastic clips. Raise plunger to top. Close plastic clips. New version has screw device to lower plunger.

Equations: PV = NkT or nRT

Safety Issues: Dropped weights