Chemistry

Chemistry, 26.06.2019 06:00, elizzabel1944

Which of the following sequences describe how a four stoke engine cycle powers the engine

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Physics, 08.07.2019 16:30, cookiemonster0476

Acarnot engine is operated between two heat reservoirs at temperatures of 520 k and 300 k. (a) if the engine receives 6.45 kj of heat energy from the reservoir at 520 k in each cycle, how many joules per cycle does it discard to the reservoir at 300 k? (b) how much mechanical work is performed by the engine during each cycle? (c) what is the thermal efficiency of the engine? 20.13 . a

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An aircraft engine takes in 9000 j of heat and discards 6400 j each cycle. (a) what is the mechanical work output of the engine during one cycle? (b) what is the thermal efficiency of the engine?

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Physics, 18.07.2019 17:10, jrfranckowiak

If the following heat engine uses a monatomic gas a. fill in the following table process ws q deltau 1-2 2-3 3-1 totals b. how much work is done by the engine in each cycle? c. how much heat is taken into the engine during a cycle? d. what is the efficiency of this engine?

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Physics, 05.10.2019 09:10, Cassandoo

1. a heat engine has a thermal effeciency of 0.38. during each cycle, it absorbs 720 j of heat from a high temperature reservoir. how much waste heat does it discard each cycle? 380 j 130 j 510 j 450 j 2. a heat engine receives 1210 j of heat and exhausts 820 j per cycle of the engine. what net work does the engine perform during the cycle? 2030 j 660 j 390 j 820 j 3. a heat engine of efficiency 0.52 performs 780 j of useful work per cycle.what is the heat input per cycle? 410 j 330 j 1200 j 1500 j 4. during each cycle of its operation, an air conditioner transfers 930 kj of heat from a room and outputs 1730 kj of heat to the outdoors. what mechanical work is involved per cycle? 2660 kj of work performed by the air conditioner 800 kj of work performed by the air conditioner 800 kj of work performed on the air conditioner 2660 kj of work performed on the air conditioner 5. a heat engine has an effeciency of 0.48. initially, the heat input to the engine is qh. then the heat input is increased by a factor of 2.4. by what factor does the net work w change? 2.4 0.42 5.8 1 6. a heat engine takes in 840 kj per cycle from a heat reservoir. which is not a possible value of the engine's heat output per cycle? 0 kj 150 kj 830 kj 400 kj

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Which of the following sequences describe how a four stoke engine cycle powers the engine...

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