Question

describe an experiment to show that a gas expands on being heated and contracts on cooling ​

Answer 1

Answer:

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Answer 2

Answer:

Take an empty flask and clamp the flask in an upside-down position over a beaker of water in such a way that the glass tube dips inside the beaker.

Now heat the flask at the top.

The air in the flask expands and moves out of the flask through the tube into the beaker containing water.

Observe the bubbles of air in the water.

Now allow the beaker to cool.

As the air inside the flask contracts, the water rises up the tube.

This proves that gas like air expands on heating and contracts on cooling.

Explanation:

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