• Verifications of the Gay-Lussac Law
• The gas thermometer
• Absolute zero
1 Rubber tube
1 Beaker, 1000 ml
1 Base
1 Aluminium container with bung
1 Cover supporting the
1 Heating plate code 6150
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Gas thermometer
In a gas thermometer, temperature readings are practically independent from the aeriform contained in the volume in which an isochoric process transformation (the variation in pressure and temperature at a constant volume) is produced if pressure and temperature conditions allow you to consider the aeriform used to be perfect. The kit consists of an aluminium container, with a capacity of about 330 cc, immersed in a glass container. Pressure and a temperature sensors allow you to characterize the system’s evolution when it is heated or cooled. The straight line p = f (T) defined by the experimental data is the calibration curve of the air thermometer. The temperature value which is obtained extracting the graph up to the value p = 0, indicates that there is a temperature minimum value which is physically meaningful.
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