Question

3. (a) Describe a simple experiment to show that expands on heating.​

Answer 1

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. .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:

I think it's helpful to you

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. ... 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.

HOPE IT HELPS YOU