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Hardness of Water:Causes, Types and Treatments

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What is difference in working and formula between heat engine, heat pump and refrigerator?

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Q. The efficiency of a Carnot heat engine is

\frac{1}{3} .

Find the coefficient of performance of Carnot refrigerator when both heat engine and refrigerator are working between similar source and sink.

Q. The efficiency of a Carnot heat engine is

\frac{1}{3} .

Find the coefficient of performance of Carnot refrigerator when both heat engine and refrigerator are working between similar source and sink.

Q. Under what conditions does a heat engine work as a refrigerator?

Q. A heat engine is working between

260 K

300 K

500

Cal. of heat from sink. Heat rejected to the source at higher temperature for this refrigerator is

Q. The figure shows a heat engine (HE) working between two reserviors. The amount of heat

Q_{2}

rejected by the heat engine is drawn by a heat pump (HP). The heat pump receives the entire work output (W) of the heat engine. If temperature,

T_{1} > T_{3} > T_{2}

, then the relation between the efficiency

η

of the heat engine and the coefficient of performance (COP) of the heat pump is

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