Question

explain with the help of a labelled diagram and experiment to show that liquids expand when heated​

Answer 1

Answer:

Take a test tube completely filled with coloured water, such that in its mouth is fixed a stopper containing a long glass tube.  Let the level of liquid in glass tubing be at A.

Place the test tube in a beaker, containing boiling hot water.  It is observed that first level of water falls to B and then rises up to C.  The fall in level of liquid can be attributed to the fact that initially only the glass tube, being in direct contact with the water bath, expands; but not the water.

However, the level of liquid rises to C, when liquid starts expanding. Thus, experiment proves:

1. Liquids expand on heating

2. Since BC > AB, liquids expand more than solids for the same rise in temperature.

Answer 2

Answer:

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