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- 1. Multiple ChoiceThe 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 andmasswork doneforcepressure
- 2. Multiple ChoiceWhich best describes ENTROPY?Useful heat energy needed to drive an engineHeat that can be stored to be used at a later dateRandom energy that escapes from the systemA state of order in a physical system
- 3. Multiple Choice
Which state of H2O has the greatest entropy?IceWaterVapor - 4. Multiple ChoiceWhich 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.
- 5. Multiple ChoiceAs a system becomes more disordered, entropyremains the sameincreasesdecreasescannot be determined
- 6. Multiple ChoiceThe first law of thermodynamics is a restatement of theZeroth law of thermodynamicslaw of heat additionprinciple of entropyconservation of energy
- 7. Multiple Choice
Which is an example of decreasing entropy in a closed system?
Boiling water
Freezing water
Cells in a body coming together
Ice melting
- 8. Multiple Choice
The picture shows two completely identical mason jars. They're both filled with the same gas, only one of them has more in it (more molecules). What can you say about the pressures of both jars?
P1 > P2 (greater pressure in jar 1)
P1< P2 (greater pressure in jar 2)
P1 = P2 (same pressure in both)
There's not enough info to tell
- 9. Multiple ChoiceWhich would have more entropy?Frozen ice creamLiquid Ice cream
- 10. Multiple ChoiceRank the following samples from greatest kinetic energy of the molecules to least kinetic energy of the molecules:A > B > C > DB > A > C > DB > A > D > CD > C > B > A
- 11. Multiple ChoiceA slower particle has a lower energy than an identical, faster particle.TrueFalse
- 12. Multiple ChoiceTwo identical blocks of iron, one at 10 degrees C and the other at 20 degrees C, are put in contact. Suppose the cooler block cools to 5 degrees C and the warmer block warms to 25 degrees C. This would violate thefirst law of thermodynamics.second law of thermodynamics.both of the abovenone of the above
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