Answer:
The total energy of the system will decrease as ice causes the warm water molecule to lose kinetic energy Option C is correct.
Explanations:
A closed system is a system that will obstruct the flow of energy between materials. According to the question, an ice cube is placed in the warm water. The introduction of this ice will reduce the kinetic energy of the water molecules.
Reduction in the kinetic energy of the molecule will lead to decrease in the total energy of the system. Therefore we can conclude that the statement that describes the energy of the system over time is that the total energy of the system will decrease as ice causes the warm water molecule to lose kinetic energy.