Which arrows represents the phase transitions in which he's energy is gained

QUESTION POSTED AT 01/06/2020 - 04:03 PM

Answered by admin AT 01/06/2020 - 04:03 PM

The correct answer would be the first option. The arrows 1, 2 and 3 represent the phase transitions where heat energy is gained. As heat energy is gained the kinetic energy of the molecules in a substance is increased which would cause them to change phases from solid to liquid and to gas.
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