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Energy Exchange in a Calorimeter

APCHEM-PLHRL7

As a heated aluminum sample is placed in cold water, it releases -24.3 kJ of energy.

Which of the following describes how the energy between the two systems changes?

A

The energy of the aluminum sample increases.

B

The energy of the aluminum sample remains constant.

C

The energy of the water increases.

D

The energy of the water decreases.