Physics Principles and Problems 2009

Section 12.2 : Changes of State and the Laws of Thermodynamics

Self-Check Quizzes

1
The thermal energy needed to vaporize 1 kg of a liquid is called the _____.
  Need a Hint?
A)boiling point
B)heat of fusion
C)heat of vaporization
D)specific heat
2
The amount of energy needed to melt 1 kg of a substance is called the _____.
  Need a Hint?
A)boiling point
B)heat of fusion
C)heat of vaporization
D)specific heat
3
Which can remove thermal energy from a colder object and add it to a warmer object?
A)dishwasher
B)microwave
C)oven
D)refrigerator
4
_____ is the measure of the disorder in a system.
A)Entropy
B)Fusion
C)Disarray
D)Work
5
The _____ law of thermodynamics states that the change in thermal energy of an object is equal to the heat that is added to the object minus the work done by the object.
A)first
B)second
C)third
D)forth
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