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Constant pressure gas thermometer pdf
Constant pressure gas thermometer pdf







constant pressure gas thermometer pdf constant pressure gas thermometer pdf

The temperature on a liquid in glass thermometers can be calculated by making certain measurements. does not stick to glass - convex meniscus.

constant pressure gas thermometer pdf

is a metal and therfore a good heat conductor.This is how the two liquids used in thermometers, alcohol and mercury compare: There are a number of disadvantages to this instrument:ġ.) The glass itself expands and contracts and leading to under and over reading of temperatures.Ģ.) Parallax errors mean readings are only 0.1 oC accurate.ģ.) The diameter of the bore is not consistent.Ĥ.) Their large thermal capacity means that they do not react quickly and they may affect the temperature they are trying to measure. The thermometer works by an expanding liquid in a vacuum, moving against a scale.









Constant pressure gas thermometer pdf