Question

Covalent compounds have low melting and boiling point. Why? ​

Answer 1

Answer:

Covalent compounds are held together by weak intermolecular forces. It is because of such weaker forces, which fails to make the compound bind tightly. Since lower heat (energy) is capable of breaking these weak intermolecular forces, therefore the melting and boiling points of covalent compounds is low.

Answer 2

HEYA, BUDDY !!

:$\implies$ The Covalent compounds are held together by weak intermolecular forces. It is because of such weaker forces, which fails to make the compound bind tightly. ... Since lower heat energy is capable of breaking these weak intermolecular forces, therefore the melting and boiling points of covalent compounds is low.

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❍ As We know that, The covalent bond is present between the atoms. It is a comparatively strong bond but the melting point is not dependent on the covalent bond. It is dependent on the inter-molecular interactions between molecules.

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Know more, > First let’s try to understand what is melting point

> The melting point of a substance is defined as the temperature at which the forces binding the molecules together are overcome and the substance gets converted into its liquid state.

> There is no breaking of bonds when a substance melts. Only the molecular forces of attraction are broken by which the molecules are held together.

- Now, if the molecular interactions will be weak then they can be easily overcome on providing energy. Hence, weaker the forces of interaction among the molecules slower will be the melting point of the substance.

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