Suppose a power plant delivers energy at 880 MW usingsteam turbines. The steam goes into the turbines superheatedat 625 K and deposits its unused heat in river water at 285 K.Assume that the turbine operates as an ideal Carnot engine.(a) If the river flow rate is 37 m3/s estimate the average temperature increase of the river water immediately downstreamfrom the power plant. (b) What is the entropy increase perkilogram of the downstream river water in J/kg.K ?

Q: (a) Calculate the work output of a Carnot engine operating between temperatures of 600 K and 100 K…

A: The Carnot efficiency here is The work output can be obtained as

Q: (a) 0.10 kg of ice at 0ºC is added to 0.30 kg of tea at 30ºC. Calculate the final temperature of the…

A: The mass of the ice isThe mass of the tea isThe temperature of ice isThe temperature of the tea isBy…

Q: state, the piston is free to move. Now air at 500 kea and 70°C is allowed to enter the cylinder from…

A: Formula as, ∆S=change in entropy V2=Final volume V1=Initial volume N=No. of moles of air

Q: The change in entropy ih an adiabatic processis equalto Zero if the processisreversible and greater…

A: Any thing in nature is not 100% efficient. Similarly if we give heat to a system all heat energy…

Q: A system with heat capacity, Cv= 19.6 J/K undergoes a reversible temperature change from 20 to…

A:

Q: A typical automobile engine Hot and cold reservoir temperature 515 , 300 K Heat loss of cold…

A: Given: The temperature of the hot reservoir is 515 K. The temperature of the cold reservoir is 300…

Q: Heat in the amount of 113kJ is transferred directly from a hot reservoir at 810 °C to a cold…

A: Heat, Q = 113 kJTemperature of hot reservoir, Th = 810 °CTemperature of cold reservoir, Tc = 390 °C…

Q: What is the total entropy change for a 0.250 kg piece of ice at an initial temperature of 0.00 degC…

A: Given data The mass of the piece is m = 0.250 kg. The initial temperature of the piece of ice is…

Q: A 1.00-kg block of copper at 100°C is placed in an insulated calorimeter of negligible heat capacity…

A:

Q: A student okes tea with O,7 kg of water at 89,0°C the table. The tea forgets it temperature (20.0…

A: Given : m = 0.7 kg T1 = 89°C = 362 K T2 = 20°C = 293 K

Q: Are the entropy changes of the systems in the following processes positive or negative? (a) water…

A: The entropy change(dS) of a system is defined as follows: If the system has a temperature T and a…

Q: An insulated piston-cylinder device contain 8L of saturated liquid water at a constant pressure of…

A:

Q: Calculate the entropy change in kJ/K, of 10kg of Silver when it’s temperature increases from 20…

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Q: A) Ikg of air at 10bar and 125 ° C receives heat at constant pressure until its temperature become…

A: Let Pressure, temperature and entropy be denoted be as P, T and S. The subscript in each of these…

Q: A cyclical heat engine operating according to a Carnot cycle has an efficiency of 13.0% efficiency.…

A: only three subpart is allowed pr question. please post remaining parts in new post.

Q: Suppose this engine is not reversible, and that only 457 J of work is done when 1050 J of heat is…

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Q: CALC You make tea with 0.250 kg of 85.0°C water and let it cool to room temperature (20.0°C). (a)…

A: We must figure out how the entropy of cooling water changes.We are aware that water has a mass of…

Q: An insulated piston–cylinder device initially contains0.02 m3 of saturated liquid–vapor mixture of…

A:

Q: inal temperature of the a with one mole of ß-Z ated during the process.

A: Mass of one mole of Fe = MFe = 56 g   = 0.056 kgSpecific heat of Fe = CFe = 462 J/ Kg0 CMass of…

Q: Determine the velocity of the steam at the exit, in ft/s, and the rate of entropy production, in…

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Q: Calculate the change in specific entropy for a completely

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Q: Suppose we have 3.50 kg of water at a temperature of 0 degre celsius. We put the water in a freezer,…

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Q: Air enters a compressor steadily at the ambient conditionsof 100 kPa and 22C and leaves at 800 kPa.…

A: The change in entropy,

Q: One end of a copper rod is in thermal contact with a hot reservoir at 1455 K, and theother end is in…

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Q: Question 1: Calculate the change of specific entropy, in across the valve shown if the working fluid…

A: Given: The initial pressure of the system is P1 = 3.5 bar The final pressure of the system is P2 = 1…

Q: kg Oxygen at the rate of 1.36 undergoes a reversible isobaric process during which min KJ „Vi= 0.5;…

A: Since you have asked multiple subparts, only the first sub-part is solved for you. If you want any…

Q: Find the change in the total entropy when 0.1 kg. of liquid water at 100 C is placed in thermal…

A:

Q: A certain heat engine operating on a Carnot cycleabsorbs410 J of heat per cycle at its hot reservoir…

A: Given data Qh=410 JTh=135°Cη=0.22

Q: A Carnot engine, whose efficiency is 40%, takes in heat from a source maintained at a temperature of…

A: Efficiency of carnot engine = 40% Temperature of source (T) = 500 K Let the temperature of the sink…

Q: What is the total entropy change for a 0.450 kg piece of ice at an initial temperature of 0.00 degC…

A: Given dataThe mass of the piece is m = 0.450 kg.The initial temperature of the piece of ice is .The…

Q: A 1 kg block of ice initially at -5 ∘C is placed in thermal contact with a very large reservoir at…

A:

Q: Suppose that 260 J is conducted from a constant-temperature reservoir at 400 K to one at (a) 100 K,…

A: The change in entropy for the reservoir at higher temperature is given by, a)

Q: system. ciron= 448 J/kg. °C. determine the total entropy change of the horseshoe-plus-water Assuming…

A: Given data: The mass of iron is mi=1 kg. Temperature of iron is Ti=900°C. Temperature of water is…

Q: Find the change in the total entropy when 0.1 kg. of liquid water at 100 C is placed in thermal…

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Q: An ideal gas is taken through a Carnot cycle.  The isothermal expansion occurs at 250oC, and the…

A: Given, Th(Temperature of the hot reservoir)=250°C=250+273=523K Tc(Temperature of the cold…