Whenever there is a change of state, such as a solid to liquid or liquid to gas, heat energy can be added without a temperature change because A) the added energy is not needed. B) the energy is lost to

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asked Jan 28, 2020 211k views

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Whenever there is a change of state, such as a solid to liquid or liquid to gas, heat energy can be added without a temperature change because

A) the added energy is not needed.
B) the energy is lost to the system.
C) the change of state requires energy.
D) the energy is lost to the atmosphere.