[" c.Explain the role of latent heat in the "],[" change of state of a substances? "]

How will you explain the role of latent heat in the change of state of a substance?

(1) Take a few pieces of ice in a glass beaker as shown in figure. (2) Insert the bulb of a thermometer in ice and measure its temperature. (3) Put the beaker on a stand and heat the ice using a burner. (4) Record the temperature using the thermometer after every minute. (5) As the ice is heated,it starts melting. Stir the mixture of ice and water. (6) Continue the heating even after ice starts melting. (7) Draw a graph of temperature versus time. Explain the role of latent heat in the change of state of a substance.

State the unit of latent heat.

What is latent heat of a substance?

Fill in the blank spaces by choosing the correct words from the list given below: latent heat of fusion, melting point, steam, constant, latent heat of vaporisation. During the change of state of a substance its temperature remains___________.

Explain what is meant by latent heat.

___________ is reponsible for the change of state of a substance.

Define latent heats of fusion and vapourisation of a substance.

A change of state is a change of a substance from ……….

The latent heat of vaporization of a substance is always