| 61. |
A block of metal is placed into an insulated bucket of water. If
there is a net flow of heat from the metal to the water, the metal must
have the higher Answer
|
|
A. |
density |
C. |
heat of vaporization |
|
B. |
specific heat |
D. |
initial temperature |
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| 62. |
Which of the
following statements is an incorrect interpretation/statement of the
Kinetic Molecular Theory ? Answer
|
|
A. |
The average kinetic energy is
inversely proportional to the absolute temperature.
|
C. |
The size of the molecules is
small compared to the distance separating them for gases. |
|
B. |
Molecules exchange energy when
they collide. |
D. |
The attractive force between
molecules is small for gases with low pressures and high temperatures. |
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| 63. |
| Based on the phase diagram to the
right, freezing point _____ and the boiling point ____ when the
pressure increases.
A. increases, increases
B. increases, decreases
C. decreases, increases
D. decreases, decreases
Answer |
 |
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|
|
|
| 64. |
| Rank the densities based on the phase
diagram to the right.
A. gas < solid < liquid
B. gas < liquid < solid
C. liquid < gas < solid
D. solid < liquid < gas
Answer |
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|
|
| 65. |
| What is the phase change if the
temperature changes from 25 to 75 degrees at 1.0 atmospheres?
A. melting
B. boiling
C. condensation
D. sublimation
Answer |
|
|
| 66. |
If the absolute
temperature is doubled for a fixed mass of an ideal gas in a rigid walled
container, what happens to the pressure? Answer
|
|
A. |
remains constant |
C. |
quadruples |
|
B. |
doubles |
D. |
halves |
|
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|
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| 67. |
Increasing the
external pressure on water has the following effect Answer
|
|
A. |
increases the
boiling point significantly and decreases the freezing point
significantly.
|
|
B. |
increases the
boiling point significantly and increases the freezing point
significantly
|
|
C. |
increases the
boiling point significantly and has only slightly decreases the
freezing point.
|
|
D. |
has only a very
small effect on the boiling point and decreases the freezing point
significantly. |
|
|
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|
|
| 68. |
A sample of solid
iron is melting, as more heat is added the temperature will Answer
|
|
A. |
increase |
C. |
depend on the mass of the iron |
|
B. |
decrease |
D. |
stay the same |
|
|
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| 69. |
| Which of the materials with the graphs
shown to the right while heat is added at a constant rate has the
highest specific heat? All of the materials had the same mass.
Answer
|
 |
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| 70. |
|
Which of the constant mass materials
with the heating curves shown to the right has the largest latent
heat for the phase change shown in the graph.
Answer
|
 |
|
