Question
A closed system includes a cup of warm water and an ice cube was just placed inside of it. Which statement describes the energy of the system over time?
The total energy of the system will decrease as the warm water causes the ice molecules to lose kinetic energy.
The total energy of the system will decrease as the ice causes the warm water molecules to lose kinetic energy
The total energy of the system will stay the same as kinetic energy from the warm water decreases the kinetic energy of the molecules in the ice
The total energy of the system will stay the same as kinetic energy from the warm water increases the kinetic energy of molecules in the ice
The total energy of the system will decrease as the warm water causes the ice molecules to lose kinetic energy.
The total energy of the system will decrease as the ice causes the warm water molecules to lose kinetic energy
The total energy of the system will stay the same as kinetic energy from the warm water decreases the kinetic energy of the molecules in the ice
The total energy of the system will stay the same as kinetic energy from the warm water increases the kinetic energy of molecules in the ice
Answers
GPT-4o mini
In a closed system where a cup of warm water and an ice cube are interacting, the total energy of the system will remain constant, as energy cannot be created or destroyed according to the law of conservation of energy. However, the distribution of energy will change as heat transfers from the warm water to the ice cube.
The correct statement that describes the energy of the system over time is:
**The total energy of the system will stay the same as kinetic energy from the warm water decreases the kinetic energy of molecules in the ice.**
In this scenario, as the warm water loses heat (kinetic energy) to the ice, the water's temperature will decrease while the ice will absorb that energy, causing its molecules to gain kinetic energy as they begin to melt. The overall energy remains constant, but the energy is redistributed within the system.
The correct statement that describes the energy of the system over time is:
**The total energy of the system will stay the same as kinetic energy from the warm water decreases the kinetic energy of molecules in the ice.**
In this scenario, as the warm water loses heat (kinetic energy) to the ice, the water's temperature will decrease while the ice will absorb that energy, causing its molecules to gain kinetic energy as they begin to melt. The overall energy remains constant, but the energy is redistributed within the system.