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Law of Conservation of Energy

APCHEM-NJUXIS

The law of conservation of energy states that energy remains constant and is transformed from one form to another.

Which of the following statements BEST supports this law?

A

The energy of a system is not affected by a physical change in a system.

B

The energy of the system changes only when a chemical reaction occurs.

C

The energy of the system changes only when the temperature of the system changes.

D

Any change in energy must be balanced by a transfer of energy into or out of the system.