dof the tube is open and a small pellet ofmercury or sulphuric acid separates theair in the bulb from the external atmo-sphere. As the temperature rises theair in the bulb expands, driving thepellet of acid before it; as it falls the aircontracts; the position of the pelletindicates the volume of… … Fig. 7. 22-23] THERMOMETRY. using such an air thermometer therefore it is necessary to knowthe pressure of the air, which is given by the height of thebarometer, and to make an allowance if this pressure variesduring an experiment. , % ; An air thermometer is very much more sensitive than amercury…
Heat · Light
Internet Archive · California Digital Library · Public Domain Mark 1.0. Free to use for anything.
