Exam 10: Temperature and Heat

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During a phase change the temperature of a system will be ___________ as heat is added.

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Hot cider is poured into a metal cup. Shortly thereafter the handle of the cup becomes hot. This is due to the process of

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The first law of thermodynamics is an extension of the principle of conservation of _________________ that we first met in mechanics.

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If you stand near a large fire, your face will be cooler if you place your hand between your face and the fire. Your hand is preventing heat flow by

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Absolute zero is the temperature

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Whenever a gas is compressed,

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The term heat in physics is

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A student uses a thermometer calibrated in Kelvin units. A temperature change of 20 K is equivalent to a change of how many degrees on the Celsius scale? ____________.

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While studying for this quiz you realize that you still have 100 g of lukewarm coffee at 40 °\degree C left in a paper cup. When you pour 20 g of boiling water into the cup, the temperature of the resulting coffee-like mixture will be now

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Two identical objects, one light colored and the other dark colored, are at the same cool temperature. Then, you place them outside, on a warm day, in direct sunlight. Which object will warm up faster?

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Heat is a form of energy, and it has long been known that heat energy will naturally flow

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A mixture consists of 70 g of ice and 60 g of liquid water, both at 0 °\degree C. (The latent heat of fusion of water is 80 cal/g and the specific heat capacity of water is 1.0 cal/g C °\degree .) The amount of heat that must be added to melt all of the ice is about

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The internal energy of a system such as helium gas can be identified as the total mechanical energy of the ______________.

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Which of the following units is not an energy unit?

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Water in a dish is set on a table in an initially empty closed room and begins to evaporate. The temperature in the room will

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A physics student has to make a choice in the color of paint to put on her geosynchronous communication satellite, MYSAT1. Considering most of its orbit is in sunlight, the decision of a light versus dark color paint will depend on which concept below?

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An ice cube of mass 100 g and at 0 °\degree C is dropped into a Styrofoam cup containing 200 g of water at 25 °\degree C. (The latent heat of fusion of water is 80 cal/g and the specific heat capacity of water is 1.0 cal/g C °\degree .) Assuming the cup does not exchange any heat with the outside, what will happen?

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Heat flows into a gas in a piston and the gas performs some work on its surroundings. The amount of work done is less than the heat added. In this situation,

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The process in which some substances may remain in a liquid state even though their temperature may dip below the freezing point is known as __________________

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Heat is added to an ideal gas and the gas expands. In such a process the temperature

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