Term
| On the Celsius temperature scale ... |
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Definition
| the numbers relate to the boiling and freezing of water |
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Term
| Internal energy refers to the |
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Definition
| total potential and kinetic energy of the molecules |
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Term
| The specific heat of copper is 0.093 cal/g C and the specific heat of aluminum is 0.22 cal/g C. The same amount of energy applied to equal masses, say 50g of copper and aluminum, will result in... |
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Definition
| a higher temperature for the copper |
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Term
The heat involved in the change of phase from solid ice to liquid water is called... |
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Definition
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Term
| The temperature of a gas is proportional to the... |
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Definition
| average kinetic energy of the gas molecules |
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Term
| The temperature known as room temperature is nearest to... |
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Definition
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Term
| Using the Kelvin temperature scale, the freezing point of water is correctly written as... |
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Definition
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Term
| The specific heat of soil is 0.20 kcal/kg C and the specific heat of water is 1.00kcal/kg C. This means that if 1kg of soil and 1 kg of water each receives 1kcal of energy, ideally... |
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Definition
| the soil will be 5 C warmer than the water |
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Term
| Styrofoam is a good insulating matereal because... |
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Definition
| it contains many tiny pockets of air |
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Term
| The transfer of heat that takes place because of density difference in fluids is... |
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Definition
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Term
| Latent heat is "hidden" because it |
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Definition
| goes into or comes out of internal potential energy |
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Term
| As a solid undergoes a phase change to a liquid, it |
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Definition
| absorbs heat while remaining a constant temperature |
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Term
A heat engine is designed to |
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Definition
| convert heat into mechanical energy |
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Term
| The work that a heat engine is able to accomplish is ideally equivalent to the... |
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Definition
| difference betweeen the heat supplied and the heat rejected |
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Term
Which of the following contains the most heat? a) a bucket of water at 0 C b) a barrel of water at 0 C c) Neither contains any heat sice the temperature is zero d) Both have the same amount of heat |
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Definition
b) a barrel of water at 0 C |
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Term
| The specific heat of copper is roughly three times as great as the specific heat of gold. WHich of the following is true for equal masses of copper and gold? |
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Definition
| A piece of copper stores three times as much heat at the same temperature |
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Term
Cooking pans made from which of the following metals would need less heat to achieve a certain cooking temperature? a) aluminum (s.h. 0.22 kcal/kg C) b) copper (s.h. 0.093 kcal/kg C) c) iron (s.h. 0.11 kcal/kg C) |
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Definition
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Term
| When you add heat to a substance, its temperature |
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Definition
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Term
| At temperatures above freezing, the evaporation rate can equal the condensation rate only at... |
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Definition
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Term
| The phase change from ice to liquid water takes place at |
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Definition
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Term
Which of the following has the greatest value for liquid water? a) latent heat of fusion b) latent heat of vaporization c) both are equivalent d) all of the above |
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Definition
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Term
Which of the following supports the second law of thermodynamics? |
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Definition
Energy tends to degrade, becoming a lower and lower quality. |
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Term
| The heat death of the universe in the future is when the universe is supposed to |
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Definition
| freeze at a uniform low temperature |
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