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Latent Heat of Fusion

Latent heat of fusion


To examine the process of heat transfer leading to the phase change melting. .

English physicist, who worked experimentally on linkage between heat and other forms of energy. Joule discovered that the power of the engine was proportional to the product of the current and the emf. In 1840, he stated a law, now called Joule's Law, that heat is produced in an electrical conductor. Joule's detailed experiments proved that any form of energy, whether electrical, chemical or mechanical produces an equal amount of heat.
He showed that heat is produced by motion and established the equivalence between amounts of heat and mechanical work. In 1843 he published his value for the amount of work required to produce a unit of heat, called the mechanical equivalent of heat. International unit of energy, the Joule, is named in his honour. Joule' s experiments were fundamental in bringing the formulation of the law of conservation of energy.

Experiment concerns observations of the temperature change of water during the melting of the defined mass of ice introduced. The collected data are analyzed using the law of heat exchange and exponential law of cooling. The latent heat of fusion of water is to be established.

[  Theory  |  Apparatus setup  |  Data acquisition  |   Data sample  |  Data analysis (TI83)  |  Data analysis (MSExcel)  |  PDF version of the module  |  Evaluation form  |  Back to Experiments  ]

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