The amount of heat energy required to change 1 kg of solid into liquid at its melting point is known as-latent heat of fusionlatent heat of vaporisationlatent heat of sublimationlatent heat of condensation

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Standard IX

Chemistry

Elements and Compounds

The amount of...

Question

The amount of heat energy required to change 1 kg of solid into liquid at its melting point is known as_________.

latent heat of condensation

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latent heat of fusion

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latent heat of vaporisation

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latent heat of sublimation

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Solution

The correct option is B latent heat of fusion
The amount of heat energy required to change 1 kg of solid into liquid at its melting point is known as latent heat of fusion of that particular solid.

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It has been observed that temperature remains constant till all solid melts into liquid. The heat supplied is used for changing a solid state into its liquid state by overcoming the particle-particle attraction force. The solid substance absorbs heat energy without showing any rise in temperature. This heat energy is called latent heat. The amount of heat required to convert a unit mass of a solid into its liquid state, without a change in temperature (i.e. at its melting point) is called the latent heat of fusion.EXPLAIN

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The amount of heat energy required to change 1 kg of solid into liquid at its melting point is known as_________.

The correct option is B latent heat of fusionThe amount of heat energy required to change 1 kg of solid into liquid at its melting point is known as latent heat of fusion of that particular solid.

The correct option is B latent heat of fusion
The amount of heat energy required to change 1 kg of solid into liquid at its melting point is known as latent heat of fusion of that particular solid.