Correct Phase change or change of state and heat Phase changes always occur with a change in the average amount of heat in a system, Heat, which is a measure of energy, either is absorbed by the material during a phase change or is released by the material during the phase change. However, although the heat content of the material changes, the temperature does not change during a phase change. Part C Classify the following phase changes as processes that require the input of energy, or as processes that have a net output of energy. Drag the appropriate items to their respective bins. View Available Hint(s) Output of energy subliming condensing vaporizing freezing deposition Input of energy melting Reset Help Earnings upcoming 10:32 P 7/20/20