When the temperature changes, the volume of the gas changes, and the volume change is used a measure of the temperature change.
The gas used is simply air, and the pressure is simply atmospheric pressure. The flask is used as a constant pressure gas thermometer. The most sophisticated piece of equipment is an Erlenmeyer flask, sealed with one-hole rubber stopper, fitted with a glass tube and hose. Miziumski for use in Physics 103, the course for students not majoring in science. This laboratory determines the temperature of absolute zero using materials available in the kitchen.
The intent is that each performance of the lab will be unique in each nature will reveal a slightly different face to the observer In keeping with this spirit, the description given here will be brief and general. Our labs do not have written instructions. P = p a t m + ρ g h p = p t p = pressure at triple point.The MU Physics Department does not claim to have invented these labs their origin is currently unknown to us.
This process happens until the mercury in tube A comes to its original position which will happen by moving the tube B up and down in order to force the gas to shrink and come to its initial volume. To mark pressure at the mercury level maintained in tube A: In Constant volume gas thermometer, firstly the gas tube which has constant amount of gas is connected to the system of which the temperature needs to be found. With every slight change in temperature value in the gas tube, there will be a corresponding change in the pressure inside Tube A. Some amount of change in the level of mercury can also be seen when there is any change in the temperature value. To maintain the level of mercury in tube A, the tube B needs to be moved up and down physically to keep the level fixed. When the value of the temperature starts to rise, the gas within the gas tube starts expanding and tries to push mercury in tube A downwards and causes difference in the levels of mercury of both the tubes.
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