CHARLES LAW TUBE

CHARLES LAW TUBE

• Comprises a 300mm capillary tube, sealed at one end, with a linear mm scale etched into the glass.
• A mercury bead (not supplied) is introduced into the tube to trap a column of air.
• Detailed Instructions included

(Wikipedia excerpt: .."...Charles's law (also known as the law of volumes) is an experimental gas law that describes how gases tend to expand when heated. A modern statement of Charles's law is: When the pressure on a sample of a dry gas is held constant, the Kelvin temperature and the volume will be in direct proportion.[1] This relationship of direct proportion can be written as: V ∝ T {\displaystyle V\propto T} So this means: V T = k , or V = k T {\displaystyle {\frac {V}{T}}=k,\quad {\text{or}}\quad V=kT}
where:  V is the volume of the gas, T is the temperature of the gas (measured in kelvins), and k is a constant for a particular pressure and amount of gas.

This law describes how a gas expands as the temperature increases; conversely, a decrease in temperature will lead to a decrease in volume. For comparing the same substance under two different sets of conditions, the law can be written as:
V 1 T 1 = V 2 T 2 {\displaystyle {\frac {V_{1}}{T_{1}}}={\frac {V_{2}}{T_{2}}}} The equation shows that, as absolute temperature increases, the volume of the gas also increases in proportion. ...")