The physics song!!!!

Saturday, June 19, 2010

little bit...about HEAT


There are few things that we all studied in this chapter.H.E.A.T.


Pressure Law states that for a fixed mass of gas,the pressure of the gas is directly proportional to its absolute temperature when the volume is constant.

Latent Heat is known as the heat absorbed at constant temperature during a change of phase

Latent Heat of Fusion is known as the heat absorbed by a melting solid.

Latent Heat of Vaporisation is known as the heat absorbed during boiling.

Specific Latent Heat is the amount of heat required to change the phase of 1 kg of the substance at a constant temperature

Specific Latent Heat of Fusion is defined as the amount of heat required to change 1 kg of the substance from solid to liquid phase without a change in constant temperature.

Specific Latent Heat of Vaporisation is defined as the amount of heat required to change 1 kg of the substance from liquid to gaseous phase without a change in constant temperature.

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