Chemistry, asked by Krethik5694, 8 months ago

A substance was analysed and was found have boiling point 450degree Celsius .at room temperature it is soft grey solid. What is melting point of pure sample substance.

Answers

Answered by FARHANAGULL50
4

Answer:

The physical properties of a particular substance determine its state at room temperature. If both its normal melting point and its normal boiling point are below room temperature (20°C), the substance is a gas under normal conditions.

Explanation:

The normal melting point of oxygen is -218°C; its normal boiling point is -189°C. Oxygen is a gas at room temperature. If the normal melting point of a substance is below room temperature, the substance is a liquid at room temperature. Benzene melts at 6°C and boils at 80°C; it is a liquid at room temperature. If both the normal melting point and the normal boiling point are above room temperature, the substance is a solid. Sodium chloride melts at 801°C and boils at 1413°C. Sodium chloride is a solid under normal conditions.

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