Boyle's Law Apparatus
Boyle's Law Apparatus
Get started with mechanics of fluids
The essential form of the apparatus gives a natural approach to the empirical basis of Boyle’s Law.
It becomes a simple way to approach the experimental side of physics and to introduce at sight the concepts of vacuum, pressure, density etc.
Equipment Needed
Mercury – Code 4207.55
experiment: Marriotte law
The tube filled with mercury and connected to a closed reservoir, allows to study the aeriform substance in the expansion container. By raising or lowering the other tube end, compression or rarefaction of the gas is obtained.
PV = K
The product of pressure and volume of a gas is constant.
The variation of the height of the mercury column implies a simultaneous change of the volume occupied by the substance.
This apparatus can also be used to estimate the atmospheric pressure.
Thanks to the high density and the very low saturated vapour pressure of mercury at normal temperatures, it allows an immediate measure of the atmospheric pressure: the world famous Torricelli’s barometer.
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