2. An engine takes in 9000 J and does 1700 J of work each cycle while operating at the temperatures of 650°C and 370°C. a. What is the engine’s actual efficiency? b. What is its maximum theoretical efficiency?

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A: Given,output W=25kWtemperature TH=10000Ktemperature TC=3000K

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A: Given: Kinetic energy is 10 J Heat wasted can be 30 J

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A: The correct option is (d).

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Q: A heat engine with an efficiency of 30% takes in 800 J of heat from the high-temperature reservoir…

A: Given: The efficiency of the heat engine is 30%. The heat input to the engine is 800 J.

Q: In every cycle of its operation, a Carnot engine takes in 640 J of heat from a reservoir at 380 K…

A: Given, heat taken from reservoir, Q = 640 J temperature of reservoir, TH = 380 K TC = 300 K

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A: Given  Heat transfer Q=4×106 J T1=35 T2=45

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A: A

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A: Entropy change is the measure of change in thermal energy per unit temperature of the system.

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A: As per given, The coefficient of performance = 2.5 Energy delivered by heat pump = 20kW

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Q: A thermal engine absorbs 1500 J of heat from a gas at a temperature of 250°K and discards 1200 J of…

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Q: A large electrical power station generates 1400 MW of electricity with an efficiency of 31 %. a) How…

A: Given that:Output power of the station, Pout=1400 MWEfficiency, η=31%=0.31

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