Explain the diagram of interconversion of the three states of matter
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1. When you provide heat to solids its temperature increases first. After it reaches its melting point it absorbs more heat, known as latent heat of fusion, which is used to change solids to liquids. You will notice that while this change is happening there is no rise in the temperature of the substance. This process of conversion of solids to liquids is known as melting.
2.Similarly when you provide heat to liquids, for eg. Water, its temperature rises till it reaches its boiling point i.e 100°C in case of water. After that it uses the excess heat supplied as latent heat of vaporisation to change its state from liquid to vapour. This process is known as vaporisation.
3. In the same way, solid changes
into vapor without changing into liquid and from vapor changes into solid without changing into liquid is known as sublimation. Generally solid first changes into liquid and then changes into gas because of rise in temperature. But there are many substances, which change into gas without changing into liquid and changes into solid from gas without changing into liquid. Such substances, which go under sublimation, are known as sublime, for eg. Naphthalene balls. The solid obtained after cooling of the gas of sublime is called Sublimate.
4. Now for the change of gases back to liquids, you need to cool it down. For eg. When temperature of vapor decreases it changes into water. This reverse process of vaporisation is called condensation.
5. Similarly, when liquids are cooled they change to solids. Their temperature reduces till it reaches their freezing point, and then they gives up more heat to finally change to solid state. This reverse process of melting is called freezing.
2.Similarly when you provide heat to liquids, for eg. Water, its temperature rises till it reaches its boiling point i.e 100°C in case of water. After that it uses the excess heat supplied as latent heat of vaporisation to change its state from liquid to vapour. This process is known as vaporisation.
3. In the same way, solid changes
into vapor without changing into liquid and from vapor changes into solid without changing into liquid is known as sublimation. Generally solid first changes into liquid and then changes into gas because of rise in temperature. But there are many substances, which change into gas without changing into liquid and changes into solid from gas without changing into liquid. Such substances, which go under sublimation, are known as sublime, for eg. Naphthalene balls. The solid obtained after cooling of the gas of sublime is called Sublimate.
4. Now for the change of gases back to liquids, you need to cool it down. For eg. When temperature of vapor decreases it changes into water. This reverse process of vaporisation is called condensation.
5. Similarly, when liquids are cooled they change to solids. Their temperature reduces till it reaches their freezing point, and then they gives up more heat to finally change to solid state. This reverse process of melting is called freezing.
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