Which contains the least amount of heat energy?
- Both 1 kg of ice at 0 degrees C and 1 kg of water at 0 degrees C have the same amount of heat energy.
- 1 kg of water at 0 degrees C has less total heat energy than 1 kg of ice at the same temperature.
- 1 kg of ice at 0 degrees C has less total heat energy than 1 kg of water at the same temperature.
Explanation
At the same 0 degrees C, water has already absorbed the latent heat of fusion that ice has not, so 1 kg of ice contains less total heat energy than 1 kg of water. Equal masses at the same temperature do not hold equal heat energy because of this latent-heat difference.
pickus asking:
Enthalpy (i.e. heat) of water = Enthalpy of ice + latent heat.
I think the answer should be that ice contain least amount of heat energy. Because ice will need to get additional heat energy to change the state/phase of the substance (ice to water).
Community Comments (2)
J
Jordi Posts: 198 14.06.2020 / 11:19
I think the answer maybe located inside the theoretical book but i cant find it.
A
Angel Posts: 4 25.11.2024 / 13:48
•Liquid matter is characterized by molecules that have more energy and increased movement. This is what the book says.
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