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A heat engine operates between two thermal reservoirs at 800 and 20"C. One-half of the work output of the heat engine is used to
1 answer
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Heat engine Heat pump Boiler Thermostat -a heating appliance that uses heat energy released from fossil fuels to warm
3 answers
asked by
Ashley
1,256 views
A device that can be used both for cooling and heating is a _____.
heat engine compressor heat pump vaporizer I think it is Heat
3 answers
asked by
Cassie
652 views
Why is it impossible for a heat engine to be 100% efficient?
a. Entropy always decreases in a heat engine b. Work cannot be done
1 answer
asked by
kricket
115 views
Why is it impossible for a heat engine to be 100% efficient?
A) Work cannot be done on a heat engine. B) Some heat is always lost
1 answer
asked by
Iwannaknow
183 views
Just as no mechanical device can be 100% efficient, no heat engine can transfer 100% of its heat to a single object. Some of the
1 answer
asked by
Jessica
1,134 views
A heat pump has a coefficient of performance of 4.5. If the heat pump absorbs 46.1 cal of heat from the cold outdoors in each
2 answers
asked by
jimmy
3,308 views
A heat pump has a coefficient of performance of 4.5. If the heat pump absorbs 46.1 cal of heat from the cold outdoors in each
1 answer
asked by
kate
638 views
Heat engine X takes four times more energy by heat from the hot reservoir than heat engine Y. Engine X delivers two times more
1 answer
asked by
jean
3,445 views
Heat is allowed to flow from the heat source of a heat engine at 425 K to a cold sink at 313 K. What is the efficiency of the
1 answer
107 views