1.
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|
Which of the following is a unit for Internal Energy?
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| Joule |
| kelvin |
| joule/molecule |
| J/s |
|
2.
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In the formula U=(3/2)nRT what is n?
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| n is the number of moles. |
| n is the number of atoms. |
| n is the number of atoms in the molecule. |
| n is the number of molecules. |
|
3.
|
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In the formula U=(3/2)NkT what is N?
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| N is the number of moles. |
| N is the number of atoms. |
| N is the number of atoms in the molecule. |
| N is the number of molecules. |
|
4.
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What is the internal energy (to the nearest joule) of 10 moles of Helium at 100 K?
|
| 5543 J |
| 8315 J |
| 12473 J |
| None of the above. |
|
5.
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At room temperature He would be expected to have a Molar Specific Heat at Constant Volume of about
|
|  |
|  |
|  |
|  |
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6.
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At room temperature He would be expected to have a Molar Specific Heat at Constant Pressure of about
|
| |
| |
| |
| |
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7.
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The process shown above is called
|
| isobaric process. |
| isochoric process. |
| isothermal process. |
| adiabatic process. |
|
8.
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|
The process shown above is called
|
| isobaric process. |
| isochoric process. |
| isothermal process. |
| adiabatic process. |
|
9.
|
|
The process shown above is called
|
| isobaric process. |
| isochoric process. |
| isothermal process. |
| adiabatic process. |
|
10.
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In the above figure, the volume at point "a" is 200 L and the pressure is 5 atm.The pressure at "b" is 1 atm. What is the work done?
|
| 80000000 J |
| 400000 J |
| 80000 J |
| 0 J |
|
11.
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In the above figure, the volume at point "a" is 200 L and the pressure is 5 atm. The volume at "b" is 400 L. What is the work done?
|
| 2x108 J |
| 1x108 J |
| 1x105 J |
| 0 J |
|
12.
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In the above figure, the volume at point "c" is 800 L and the pressure is 2 atm. The volume at "d" is 400 L. What is the work done?
|
| 8x107 J |
| 8x104 J |
| -8x107 J |
| -8x104 J |
|
13.
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In the above figure, the volume at point "c" is 800 L and the pressure is 2 atm. The volume at "a" is 400 L and the pressure is 5 atm. What is the work done as the system goes through one complete cycle abcd?
|
| 800000 J |
| 400000 J |
| 280000 J |
| 120000 J |
|
14.
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In the above figure, the volume at point "c" is 800 L and the pressure is 2 atm. The volume at "a" is 400 L and the pressure is 5 atm. What heat is absorbed by the system in the above square cycle?
|
| 120000 J |
| 0 J |
| -120000J |
| Not enough information. |
|
15.
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In the above figure the volume at point "c" is 800 L and the pressure is 2 atm. The volume at "a" is 400 L and the pressure is 5 atm. What is the work done as the system goes through one complete cycle acda?
|
| -60000 J |
| 0 J |
| 60000 J |
| 120000 J |
|
|
|
In the above figure, the work is
|
| positive. |
| zero. |
| negative. |
|
17.
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In the above figure, QH is 10000 J and QC is 6000 J. What is the efficiency?
|
| .6 |
| .55 |
| .4 |
| Need more information. |
|
18.
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If the heat engine above is a Carnot engine, and QH is 10000J, what is W?
|
| 4500 J |
| 5500 J |
| 6500 J |
| 7500 J |
|
19.
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What is the heat Loss, QC?
|
| 4500 J |
| 5500 J |
| 6500 J |
| 7500 J |
|
20.
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What is the coefficient of performance (CP) of the reversible (Carnot) refrigerator shown above?
|
| .1 |
| 9 |
| 10 |
| 11 |
|
21.
|
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What is the coefficient of performance (CP) of the reversible (Carnot) heat pump shown above?
|
| .1 |
| 9 |
| 10 |
| 11 |
|
22.
|
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The heat engine shown above is
|
| a reversible (Carnot) heat engine. |
| a irreversible heat engine. |
| a hoax. |
| none of the above. |
|
23.
|
|
The heat engine shown above is
|
| a reversible (Carnot) heat engine. |
| a irreversible (Carnot) heat engine. |
| a hoax. |
| none of the above. |
|
24.
|
|
The heat engine shown above is
|
| a reversible (Carnot) heat engine. |
| a irreversible (Carnot) heat engine. |
| a hoax. |
| none of the above. |
|
25.
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Use this animation The gas in the cylinder is undergoing a Carnot cycle, in which step is the gas absorbing heat?
|
| A |
| B |
| C |
| D |
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26.
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Use this animation In which step is the temperature of the gas animation increasing?
|
| A |
| B |
| C |
| D |
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27.
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Use this animation In which step is the gas animation losing heat?
|
| A |
| B |
| C |
| D |
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28.
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Use this animation In which step is the gas animation doing work but not exchanging heat?
|
| A |
| B |
| C |
| D |
|
29.
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A reservoir delivers 1000 J of heat to another reservoir at 133 oC. What is the increase in entropy of the second reservoir?
|
| 7.52 J/K |
| 2.5 J/K |
| 1000 J/K |
| 133000 J/K |
|
30.
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A reservoir delivers 1000 J of heat to another reservoir at 133 oC. What can be said about the change in entropy of the first reservoir during the process?
|
| positive and <2.5 |
| positive and >2.5 |
| negative and >-2.5 |
| negative and <-2.5 |
