1.
|
|
If temperature is measured in J/molecule (which is what it measures) instead of kelvin, what would be the value of k, Boltzmann's constant?
|
| 2/3 |
| 2/3 J/K |
| 3/2 J/K |
| 1.38x10-23 J/K |
|
2.
|
|
If temperature is measured in J/molecule (which is what it measures) instead of kelvin and if we call the temperature scale the G scale what would be the temperature of the freezing point of water?
|
| 0 G |
| 2.1 G |
| 5.7 G |
| 5.65x10-21 G |
|
3.
|
|
What would be the conversion between the G scale (question 2) and the Celsius scale.
|
| T(C)=T(G)-273 |
| T(C)=((2/3)*T(G)/k)-273 |
| T(C)=((2/3)*T(G))+273 |
| T(C)=(T(G)/k)+273 |
|
4.
|
|
Six molecules have the speeds (in arbitrary units) of 2, 2, 4, 8, 4, 10. What is their average speed?
|
| 3 |
| 4 |
| 5 |
| 6 |
|
5.
|
|
Six molecules have the speeds (in arbitrary units) of 2, 2, 4, 8, 4, 10. What is the rms speed (to the nearest unit) of the molecules?
|
| 3 |
| 4 |
| 5 |
| 6 |
|
6.
|
|
In a gas at temperature T, the minimum speed is given by
|
| 0 |
|  |
|  |
| |
| None of the above |
|
7.
|
|
In a gas at temperature T, the maximum speed is given by
|
| 0 |
| |
| |
|  |
| None of the above |
|
8.
|
|
In a gas at temperature T, the rms speed is given by
|
| 0 |
| |
| |
| |
| None of the above |
|
9.
|
|
The rms speed of the Oxygen Molecule (5.3x10-26 kg) in air at 0 oC is
|
| 0 m/s. |
| 388 m/s. |
| 462 m/s. |
| 490 m/s. |
| 510 m/s. |
|
10.
|
|
The rms speed of the Nitrogen Molecule (4.7x10-26 kg) in air at 0 oC is
|
| 0 m/s. |
| 388 m/s. |
| 462 m/3 |
| 490 m/s. |
| 510 m/s. |
|
11.
|
|
How much heat is needed to boil 1 kg of water to steam?
|
| 79.7 kcal |
| 100 kcal |
| 539 kcal |
| 32 kcal |
|
12.
|
|
How much heat does it take to melt 1 kg of ice into water?
|
| 79.7 kcal |
| 100 kcal |
| 539 kcal |
| 32 kcal |
|
13.
|
|
In the formula U=(3/2)nRT what is n?
|
| 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. |
|
14.
|
|
In the formula U=(3/2)NkT what is N?
|
| 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. |
|
15.
|
|
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. |
|
16.
|
|
If 10 moles of a gas has a gauge pressure of 2 atm and a temperature of 200 K, what is its volume?
|
| .055 m3 |
| .082 m3 |
| 5533 m3 |
| 8315 m3 |
|
17.
|
|
10 moles of a gas has a gauge pressure of 2 atm and a temperature of 200 K. If the temperature is doubled, what will be the new gauge pressure in atm?
|
| 3 atm |
| 4 atm |
| 5 atm |
| 6 atm |
|
18.
|
|
10 moles of a gas has a gauge pressure of 2 atm and a temperature of 200 K. If the volume of the gas is doubled and the gauge pressure dropped in half (1 atm), what is the new temperature?
|
| 200 K (it does not change) |
| 267 K |
| 300 K |
| 400 K |
|
19.
|
|
10 moles of a gas has a gauge pressure of 2 atm and a temperature of 200 K. How many molecules are there in the gas?
|
| 6.02x1024 |
| 6.02x1023 |
| 6.02x1022 |
| Unknown |
|
20.
|
|
10 moles of a gas has a gauge pressure of 2 atm and a temperature of 200 K. If the molecules are hydrogen (atomic mass =1.008 u), what is the mass of the gas?
|
| 10.08 g |
| 20.16 g |
| 10.08 kg |
| 20.16 kg |
