What is meant by change of state? Explain the term melting and freezing
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Here is the answer for your question:
A matter may exist in three forms or states named as:
Solid ; Liquid ; Gas.
=> A Solid state is a state in which matter is characterised by having definite shape, distinct boundaries, rigidity,incompressibility and fixed volume.
=>A Liquid state shows fluidity, low compressibility and
no definite boundaries, volume or shape.
=>A Gaseous state low density, high compressibility, equal pressure in all directions,mix evenly, intermolecular force, and no shape, volume of a container.
•••Therefore,The inter-conversion of these three forms or states of matter is called Change of state.
•••Melting is the change that occurs when a solid
changes into a liquid at atmospheric as the temperature
increases.
•••Freezing is the change that occurs when a liquid changes into a solid as the temperature decreases.
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