what is called latent heat? thanks my answer
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Latent heat, also called heat of transformation, is the heat given up or absorbed by a unit mass of a substance as it changes from a solid to a liquid, from a liquid to a gas, or the reverse of either of these changes. It is called latent because it is not associated with a change in temperature.
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Latent heat, energy absorbed or released by a substance during a change in its physical state (phase) that occurs without changing its temperature. ... The latent heat is normally expressed as the amount of heat (in units of joules or calories) per mole or unit mass of the substance undergoing a change of state
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