(i) Stirrer.
-Source of heat
(ii) - Volume/length of air column.
- Temperature.
(ii) - Air is tapped by thin mercury thread in a capillary tube. The initial temperature of water is noted and the corresponding volume.
- The water is then heated and this in turn heats up the trapped air in the capillary tube. The volume of the air is read and the temperature is recorded.
- Several values of temperature and corresponding volumes are recorded in a table.
- A graph of volume against absolute ? temperature is drawn which is a straight line passing through the origin.
- An increase in temperature leads to increase in volume.
sharon kalunda answered the question on September 11, 2019 at 07:33
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