The correct explanation is: The particles gain kinetic energy, increasing their freedom to move.
When ice melts and becomes liquid water, the intermolecular forces holding the ice lattice structure together weaken and break. This allows the particles (water molecules) to move more freely and increases their kinetic energy. The increased freedom of movement and kinetic energy is associated with an increase in the system's entropy (disorder). In this process, the potential energy remains relatively constant as the interactions between the water molecules are primarily determined by their position and arrangement. Therefore, the potential energy does not contribute significantly to the increase when ice starts to melt and becomes liquid water.
Explain why the potential energy increases when ice starts to melt an becomes liquid water.
The particles form a more ordered structure, reducing potential energy.
The particles slow down, reducing kinetic energy.
The particles get closer together, reducing potential energy.
The particles gain kinetic energy, increasing their freedom to move.
5 answers
so A B C or D?
The correct answer is D. The particles gain kinetic energy, increasing their freedom to move.
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Quick Check: Matter and Temperature
Blended Science 8 (5A/5B) - QUARTER 2 / Thermal Energy
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3.
If there has been an increase of potential energy in the molecules of a substance, what has occurred?
The substance has cooled down.
The substance has undergone a phase change.
The substance has evaporated.
The substance has gained kinetic energy.
Quick Check: Matter and Temperature
Blended Science 8 (5A/5B) - QUARTER 2 / Thermal Energy
All changes saved
3.
If there has been an increase of potential energy in the molecules of a substance, what has occurred?
The substance has cooled down.
The substance has undergone a phase change.
The substance has evaporated.
The substance has gained kinetic energy.
The correct answer is D. The substance has gained kinetic energy.
When there is an increase in potential energy in the molecules of a substance, it implies that the molecules have gained energy, which is typically associated with an increase in kinetic energy. This increase in kinetic energy results in faster movement, greater freedom of motion, and higher temperatures.
When there is an increase in potential energy in the molecules of a substance, it implies that the molecules have gained energy, which is typically associated with an increase in kinetic energy. This increase in kinetic energy results in faster movement, greater freedom of motion, and higher temperatures.
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