Question

give one example where expansion on heating is put to good use

Answer 1

like in geothermal energy , In thermal power plants . ocean thermal power plant and so on

this all power plants will work on the expansion of air and this expanded air will pass through a pipe to the blades of fan for generation of electricity ...

Answer 2

Answer:

The automatix fire alarm contains two metal

strips, one is of iron and the other one is of brass, firmly folded together Brass expands more on heating than iron. As it bends, the circuit of the electric bell is completed. The bell starts ringing to give a alarm.