Question

what is criteria of purify of solid substance?​

Answer 1

Explanation:

in laboratory, melting and boiling point are used as criteria of purity of solid substance

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Answer 2

Melting and boiling points are used to check the purity of the solid substance.

Explanation:

• Pure solid and liquid compounds have sharp melting and boiling points.

• The boiling point of the substance is the 'temperature at which the vapor pressure' of a liquid equals the pressure exerted by the surroundings upon the liquid.

• The melting point of the solid is the equal to the 'freezing point' of the liquid.

• The 'melting point' of a solid is the equal to the freezing point of the liquid.

• The 'solid and liquid states' of the substance are in equilibrium at this temperature.

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