Question

(viii) Conversion of a solid to liquid by heating is called
(a) evaporation
(b) melting
(c) condensation
(d) freezing

Answer 1

Answer:

it is called melting

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Answer 2

Conversion of a solid to liquid by heating is called Melting.

Explanation:

1. Melting- It is the process by which a solid substance is transformed into liquid.

2. Every substance or matter has fixed and a particular temperature at which the melting process occurs.

3. Example of this process includes: melting of solid ice into water or liquid.

4. During the process of melting, the attractive force between the atoms of the molecules becomes weak and the state or the form changes from solid to liquid.

5. When we heat any solid form, then the rise in temperature leads to increase in kinetic energy of the molecules forming the solid.

6.Evaporation:Transformation from liquid to vapour.

Condensation: Transformation from vapour to liquid.

Freezing: Transformation of liquid to solid.

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