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WRAP-UP
FACT or BLUFF. The following statements are about Heat and Internal Energy.
Write FACT if the statement is TRUE and write BLUFF if the statement is FALSE.
1. When heat is added to a system, its internal energy increases.
2. If work is done on the system, its internal energy decreases.
3. Phase change is also a change in the internal energy.
4. Heat may be transferred from one object to another.
5. Celsius, Fahrenheit and Kelvin are units of heat.