Question

Which of the f which of the following changes takes place when heat is supplied

Answer 1

Answer:

When heat is supplied to the substance, energy of molecules of substance increases. So, Kinetic energy of molecules also increses then, molecules of substsnce tends to move due to higher kinetic energy and convert phases from solid to liquid to gas, if further energy is supplied to the substance.

Answer 2

Explanation:

1. crushing of coal piesces