Boyle’s Law Vertical Apparatus

Description

Designed for demonstration, the column is clearly visible to the whole class without them having to crowd around the demonstration bench. A wide-bore glass tube is mounted vertically in front of a scale graduated 0 to 65cm³. Zero corresponds to the inside of the closed (top) end of the tube.

Air is confined in the tube by coloured water or oil (not included) contained in a metal pressure chamber which is fitted with a Bourdon-type gauge calibrated 0 to 3.4 x 10^5 Pa. As the pressure in the chamber is increased using a pump (not included), coloured water or oil is forced into the glass tube and the volume of the contained air and its actual (total) pressure are clearly indicated.