Question

The boiling point of a sample of water under atmospheric pressure is recorded to be 102*C.Does the sample represents a pure substance? Explain

Answer 1

Answer:

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Explanation:

Boiling point, temperature at which the pressure exerted by the surroundings upon a liquid is equalled by the pressure exerted by the vapour of the liquid; under this condition, addition of heat results in the transformation of the liquid into its vapour without raising the temperature.

Answer 2

It is an impure substance.
Pure substances have fixed melting and boiling point at given pressure.
Presence of impurity would decrease the melting point and increase the boiling point.


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