Charles' Law Apparatus

Used to determine the temperature/volume relationship of gases at constant pressure. Data can be used to extrapolate the values for absolute zero and introduce the Kelvin temperature scale. Apparatus consists of a 53-cm capillary tube, sealed at one end, fastened to a wood centimeter scale. A drop of mercury placed in the tube traps a given volume of air. As the temperature of the air is increased, the volume occupied by the air increases in direct proportion to the length of the air column. Complete with instructions.