Thermo vocab chapter 6

thermo-vocab-chapter-6

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Carnot efficiency is the highest efficiency a heat engine can have when operating between the two thermal energy reservoirs

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match the following

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Carnot heat engine
Carnot heat pump
Carnot refrigerator

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heat pump that operates on the reversed Carnot cycle.
refrigerator that operates on the reversed Carnot cycle.
theoretical heat engine that operates on the Carnot cycle.

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The Carnot principles are two conclusions that pertain to the thermal efficiency of reversible and irreversible (i.e., actual) heat engines. Which two of these are the principles in question?

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It is impossible to construct a device that operates in a cycle and produces no effect other than the transfer of heat from a lower-temperature body to a higher-temperature body.

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the measure of performance of refrigerators and heat pumps, expressed in terms of the desired result for each device (heat absorbed from the refrigerated space for the refrigerator or heat added to the hot space by the heat pump) divided by the input, the energy expended to accomplish the energy transfer (usually work input).

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heat exchanger in which the working fluid condenses as it rejects heat to the surroundings.

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indicates how well an energy conversion or transfer process is accomplished.

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the performance of refrigerators and air conditioners, and is the amount of heat removed from the cooled space in Btu's for 1 Wh (watt-hour) of electricity consumed.

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heat exchanger in which the working fluid evaporates as it receives heat from the surroundings.

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process has no irreversibilities to occur outside the system boundaries during the process.

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Friction is a familiar form of irreversibility associated with bodies in motion which results from the force that _________ the motion developed at the interface of the two bodies in contact when the two bodies are forced to move relative to each other.

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has no irreversibilities that occur within the boundaries of the system during the process.

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A heat reservoir is a thermal energy reservoir since it can supply or absorb energy in the form of heat. Match the types.

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heat sink
heat source

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supplies energy in the form of heat.
absorbs energy in the form of heat.

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Thermo vocab chapter 6

Question 1 of 1

Time Left

Carnot efficiency is the highest efficiency a heat engine can have when operating between the two thermal energy reservoirs

Select the correct answer(s).

(0/0)

match the following

Match the text (click and drag)

(0/0)

Carnot heat engine

Carnot heat pump

Carnot refrigerator

heat pump that operates on the reversed Carnot cycle.

refrigerator that operates on the reversed Carnot cycle.

theoretical heat engine that operates on the Carnot cycle.

The Carnot principles are two conclusions that pertain to the thermal efficiency of reversible and irreversible (i.e., actual) heat engines. Which two of these are the principles in question?

Select the correct answer(s).

(0/0)

It is impossible to construct a device that operates in a cycle and produces no effect other than the transfer of heat from a lower-temperature body to a higher-temperature body.

Select the correct answer(s).

(0/0)

Select the correct answer(s).

(0/0)

heat exchanger in which the working fluid condenses as it rejects heat to the surroundings.

Select the correct answer(s).

(0/0)

indicates how well an energy conversion or transfer process is accomplished.

Select the correct answer(s).

(0/0)

the performance of refrigerators and air conditioners, and is the amount of heat removed from the cooled space in Btu's for 1 Wh (watt-hour) of electricity consumed.

Select the correct answer(s).

(0/0)

heat exchanger in which the working fluid evaporates as it receives heat from the surroundings.

Select the correct answer(s).

(0/0)

process has no irreversibilities to occur outside the system boundaries during the process.

Select the correct answer(s).

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Friction is a familiar form of irreversibility associated with bodies in motion which results from the force that _________ the motion developed at the interface of the two bodies in contact when the two bodies are forced to move relative to each other.

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has no irreversibilities that occur within the boundaries of the system during the process.

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A heat reservoir is a thermal energy reservoir since it can supply or absorb energy in the form of heat. Match the types.

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heat sink

heat source

supplies energy in the form of heat.

absorbs energy in the form of heat.

Heat engines are devices that convert heat to work. Heat engines differ considerably from one another, but all can be characterized by the following:

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Geothermal heat pumps use what as the heat source?

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