Question

Most of the substances increase in their dimensions when expand on heating.

• A. True
• B. False

Answer 1

The correct option is A True

• A metal plane is heated.There are three factors on which the increase in its area will depend.
• (i) Original area of plate
• (ii) Rise in temperature
• (iii) Nature of material of plate
• Heat causes the molecules to move faster, (heat energy is converted to kinetic energy ) which means that the volume of a gas increases more than the volume of a solid or liquid.

Thus the given statement is true.