Unit 4 Part 1 - Vocabulary

The transfer of thermal energy between objects of different temperatures is called...

• temperature
• heat
• internal energy
• none of these

It is possible to reach absolute zero

• true
• false

The second  law of thermodynamics states that entropy of a system  tends to ______________. 

• increase
• decrease
• stay constant
• fluctuate wildly

The temperature of a glass of cold water will eventually...

• Match the temperature of the surrounding environment.
• Always be colder than the surrounding environment.
• Become warmer than the surrounding environment.
• Never change temperature.

The first law of thermodynamics states that energy is

• created
• destroyed
• conserved
• created and destroyed

The first law of thermodynamics states that the change in the internal energy of a system is equal to the difference in energy transferred to or from the system as heat and

• mass
• work done
• force
• pressure

Which best describes ENTROPY?

• Useful heat energy needed to drive an engine
• Heat that can be stored to be used at a later date
•   Random energy that escapes from the system
• A state of order in a physical system

Which state of H₂O  has the greatest entropy?

• Ice
• Water
• Vapor

Which statement is true about the ENTROPY?

• Entropy refers to DISORDER, the unusable energy that escapes a system.
• Entropy refers to the balance of temperature among two or more systems.
• Entropy refers to the average kinetic energy of the molecules.
• Entropy refers to the inability to destroy or create energy. 

As a system becomes more disordered, entropy

• remains the same
• increases
• decreases
• cannot be determined