The amount of heat energy per kilogram that must be added or removed when a substance changes from one phase to another.  a. specific heat  b. heat of expansion  c. latent heat  d. useful heat

The amount of heat energy per kilogram that must be added or removed when a substance changes from one phase to another.  a. specific heat  b. heat of expansion  c. latent heat  d. useful heat
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latent heat
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