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 Define latent heat of fusion

Asked by Ashraf Hussain(student) , on 28/4/13

Answers

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Latent heat of Fusion : It is the heat required to change 1 kg of a solid substance into liquid state at the melting point of the substance. For example, amount of heat required to melt ice at 0 ° C into water at 0 ° C, will be known as the Latent Heat of Fusion of ice.

hope it helps!!!!!!!

Posted by Life Is Fun(student)on 29/4/13

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Latent heatis theheatreleased or absorbed by achemical substanceor athermodynamic systemduring a changeofstatethat occurs without a change in temperature, meaning aphase transitionsuch as the melting of ice or the boiling of water.

From this definition, the latent heat for a given mass of a substance is calculated by

Q=mL

where:

Qis the amount of energy released or absorbed during the change of phase of the substance (inkJor inBTU),
mis the mass of the substance (inkgor inlb), and
Lis the specific latent heat for a particular substance (kJ-kgm−1or in BTU-lbm−1), eitherLffor fusion, orLvfor vaporization.

Posted by Vivek Tripathi(student)on 29/4/13

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the amount of heat energy required to change 1 kg of solid into liquid at atmospheric pressure is called latent heat of fusion

Posted by Vivek Tripathi(student)on 29/4/13

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Latent heat of fusion is defined as the heat absorbed when a substance changes it 's phase from liquid to solid state.

Posted by Vivek Tripathi(student)on 29/4/13

EXPERT ANSWER

Latent heat of fusion is the heat required to change 1 kg of a solid substance into liquid state at the melting point of the substance. For example, amount of heat required to melt ice at 0° C into water at 0° C, will be known as the Latent Heat of Fusion of ice.

Posted by Kirti Gogia(MeritNation Expert)on 29/4/13

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