Question 11.
Answer the following:
Explain the role of latent heat in the change of state of a substance?
Answer:
The role of latent heat in the change of state of a substance are:
⇒ Latent heat of fusion: The latent heat of fusion helps to transform any substance from solid state to liquid state by absorbing heat energy at constant temperature during transformation.
⇒ Latent heat of vaporization: The latent heat of vaporization helps to transform any liquid substance from liquid state to gaseous state by absorbing heat energy at constant temperature during transformation.