Question

..8
Give reasons for the following
1. Why do metals expands on heating while other solids do not​

Answer 1

Answer:

Metal expands when heated because an increase in temperature is actually an increase in the vibration of the atoms that compose the metal, and this vibration forces the atoms slightly apart.

Explanation:

Answer 2

Answer:

The expansion (or contraction) of any material is due to the kinetic energy of its atoms. When a material is heated, the increase in energy causes the atoms and molecules to move more and to take up more space— that is, to expand. This is true of even a solid such as a metal.14-Jul-2016