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AP® Physics 1 & 2

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Moderate

Isolated Phase

APPH12-84X0OK

A 5 kg block of water ice is placed in a perfectly sealed rigid container. The container is placed over a flame and the temperature inside slowly increases. The ice changes phase to a liquid and then to a gas.

What is the final mass of the container's contents?

A

Slightly less than 5 kg

B

Slightly more than 0 kg

C

Exactly 5 kg

D

Slightly more than 5 kg