what is meaning of latent heat
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Answer:
It has been observed that temperature remains constant till all the 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. For ice, the latent heat of fusion is 334 kJkg-1. This means that 334 kJ of heat is required to convert 1 kg of ice at 0°C into 1 kg of water at 0°C. Conversely, 334 kJ of heat is released when 1 kg of water freezes at 0°C to give 1 kg of ice at 0°C.
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Answer:
the heat required to convert a solid into a liquid or vapour, or a liquid into a vapour, without change of temperature.