Question

Substances increase in size on heating.

• A. True
• B. False

Answer 1

The correct option is A True

Substances on heating:

• Generally, Substances expand on heating and this phenomenon is known as thermal expansion.
• This happens because of an increase in the kinetic energy of molecules as temperature increases on heating.
• The intermolecular force holding the molecules becomes weak as we increase the temperature, which results in expansion.

Thus, the given statement is True. i.e., Substances increase in size on heating.