Explain the expansion of liquids and with the help of an experiment.

Explain the expansion of liquids and with the help of an experiment.
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1 Answer

Answer :

I. Take an empty flask and fit a cork into its mouth. Pass short limb of U-shape glass tube through it. II. Clamp the flask in a stand. III. Dip the long limb of U-shaped tube in the water. IV. Note and mark at the level of water in glass tube and then heat the flask. V. On heating, air in the flask expands and produces bubbles in the water. VI. On cooling, air in the flask contracts, so suction is created which pulls the water in the glass tube up.
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