A steam power plant with a power output of 150 MW consumes coal at a rate of 60 tons/h. If the heating value of the coal is 30,000 kJ/kg, determine the overall efficiency of this plant.

Q: During a cyclic process, a heat engine absorbs 550 J of heat from a hot reservoir, does work and…

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Q: A steam engine operates at an overall efficiency of 15%. How much heat be supplied per hour in order…

A: Heat supplied per hour P=WtP=ηQtQt=Pη

Q: discards

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Q: The heat that goes into a particular Carnot engine is 4.00 timesgreater than the work it performs.…

A: Input heat = 4 times work done

Q: heat engine operates between a hot reservoir at 790°C and a cold reservoir at a temperature of 15…

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Q: The table in given image represents the decibel level for several sound sources. Use the table to…

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Q: In one cycle, a heat engine takes in 1160 J of heat from a high-temperature reservoir and releases…

A: A heat engine is a thermodynamic-engine based on the second law of thermodynamics. The heat engine…

Q: A heat engine receives heat in the amount of Q,= 525 kJ from a high temperature thermal reservoir…

A: Given Amount of heat received by the heat engine Qh = 525 kJ Net work done by the heat engine Wnet…

Q: An engine, operating with an efficiency of 0.225,  delivers 8.10 ✕ 105 J each minute. What is the…

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Q: A gasoline truck engine takes in 10,000 J of heat and delivers 2,000 J of mechanical work per cycle.…

A: Find the heat energy due to cold reservoir. QH=W+QCQC=QH-W=10,000 J-2,000 J=8000 J The entropy of…

Q: The heat that goes into a particular Carnot engine is 4.00 times greater than the work it performs.…

A: We have to find the efficiency of the carnot engine. We know the heat input in the carnot is 4 times…

Q: An engine uses 20% of the energy supplied for its operation. Indicates whether each of the…

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Q: a heat engine outputs 100 Joules work and releases 400 Joules to the cold source.  what is the heat…

A: The heat energy absorbed heat engine from the hot source is given by, Qh=W+Qc Here, W is the work…

Q: As a gasoline engine is running, an amount of gasoline containing 11,100 J of chemical potential…

A: Given Data: The input energy is: Qi=11100 J The output energy is: Qo=3700 J

Q: A refrigerator has a coefficient of performance of 3.25. How much work must be suppliedto this…

A: Given data: Coefficient of performance =3.25 Change in heat,Q=261 J Let work done be W: Applying The…

Q: An ideal Heat Engine is determined to have an efficiency of 21.7% and a power output of 139kW. How…

A: Write the given values with the suitable variables. η=21.7%=0.217Po=139 kW Here, η and Po are the…

Q: A power plant has been proposed that would make use of the temperature gradient in the ocean. The…

A: Given:-               A power plant has been proposed that would make use of the temperature…

Q: a refrigerator removes heat from the cubicle at the rate of 20kj and ejects 24kj into a room per…

A: Given in question:   Heat removed from the cubicle per cycle(QR) = 20 KJ…

Q: A truck mass of m=1210kg drives up an incline at a constant speed of v = 12.7 m/s. The forces of air…

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Q: In one cycle a heat engine absorbs 3.82 * 104 J of heat from the hot reservoir and rejects 3.16 *…

A: Given, Heat absorbed, Qa=3.82×104 J Heat rejected, Qr=3.16×104 J   We know, Efficiency is given by:…

Q: A diesel generator supplies a small mine, not connected to a power grid, with power. The maximum…

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Q: A heat engine extracts 59 kJkJ from the hot reservoir and exhausts 32 kJkJ into the cold reservoir.…

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Q: As a gasoline engine is running, an amount of gasoline containing 13,600 J of chemical potential…

A: Given: Input energy, E=13600 J Work done, W=3400 J

Q: During each cycle a reversible engine absorbs 3100 J of heat from a high-temperature reservoir and…

A: We are aware that the engine generates 3100 J of heat and uses 1900 J of energy to work. We have to…

Q: A heat engine is found to have an efficiency of 0.33. If it does 190 J of work per cycle, how much…

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Q: A heat pump removes 2060 J of heat from the outdoors and delivers 3060 J of heat to the inside of a…

A: Given data The heat removed by the pump is QL=2060 J The heat delivered by the house is QH=3060 J…

Q: A large electrical power station generates 1050 MW of electricity with an efficiency of 37.0%. (a)…

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts (a, b,…

Q: Energy may be stored for use during peak demand

A: (b) (i) Energy required each night E = mgh = 1.35 X 105 X 9.8 X 135  =  178605000 J = 1.78605 X 108…

Q: Suppose that a heat engine takes 3.20  104 J of heat from the high-temperature reservoir to produce…

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Q: An engine with an efficiency of 0.34 absorbs 55 J from a heat reservoir in each cycle. If it…

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Q: As a gasoline engine is running, an amount of gasoline containing 15,000J of chemical potential…

A: Given value--- amount of gasoline containing 15,000J of chemical potential energy is burned in 1 s.…

Q: b) Energy may be stored for use during peak demand by pumping water to a high reserveir when needed.…

A: Given: The height is h=135 m. The time is t=10 h. The rate is r=1.35X105 kg/s. Part (i) The…

Q: A diesel engine has efficiency 0.180. (a) In order for this engine to do 1.24 * 10^4 J of work, how…

A: Given data η=0.18W=1.24×104 J

Q: A refrigerator does 26.0 k) of work while moving 117 kJ of thermal energy from inside the…

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Q: A heat engine takes 1800 kcal of heat from a hot reservoir at 270oC and vents 1200 kcal to a cold…

A: Given,