An investigation was designed to show the relationship between thermal equilibri

Question

An investigation was designed to show the relationship between thermal equilibrium and the second law of thermodynamics. In this investigation, a warm piece of metal was placed into cool water and the change in temperature of both objects was observed. How did this investigation demonstrate the law of conservation of energy in addition to the second law of thermodynamics? Select all true statements. The law of conservation of energy was demonstrated because the heat energy lost by the metal was gained by the water. The second law of thermodynamics was supported because the metal temperature decreased, which decreased the kinetic energy of the metal atoms, decreasing the entropy of the system The law of conservation of energy was not supported because the total temperature of the system changed. The second law of thermodynamics was supported because the water temperature increased, which increased the kinetic energy of the water molecules, increasing the entropy of the system The law of conservation of energy was demonstrated because the heat energy lost by the water was gained by the metal.

Explanation / Answer

Law of conservation of energy: Energy can neither be created no be destroyed but can be transferred from one form to other form.

Second law of thermodynamics: For all the spontaneous reactions, the entropy of the universe always increases.

1.

The law of conservation of energy was demonstrated becuase the heat energy lost by the metal was gained by the water.

4.

The second law of thermodynamics was supported because the waterl temperature increased which increased the kinetic energy of the water molecules, increasing the entropy of the system.

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