A heat engine that operates between two heat reservoirs at 900 ° C and 0 ° C, respectively, it has an efficiency of 35% and receives 21 kJ. If the tank temperature low is the environment, determine its entropy variatio

Q: i) What is first law of thermodynamics? Write the formula. ii) Estimate the work done in changing…

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Q: 1.75 kg of carbon dioxide sublimate from solid dry ice to a gas at a pressure of 100 kPa and a…

A: Given mass of carbon dioxide m=1.75 kgTemperature T=194.7 KLatent heat of sublimation L=5.77×105…

Q: An ice tray contains 360 g of liquid water at 0°C. Calculate the change in entropy of the water as…

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Q: a student adds heat to .350 kg of pure ice at 0.0 degree Celcius until it is completely melted (but…

A: Given data: The mass of ice is m=0.35 kg. Temperature of ice is t=0oC+273=273 K. The temperature of…

Q: A heat engine absorbs 2500 J of heat at 250°C and expels 2000 J at a temperature of 50°C. The change…

A: Given: Heat absorbed at T1=250°C is Q1=2500 J Heat expelled at T2=50°C is Q2=2000 J

Q: When 0.50 kg of water at 0°C freezes, what is the change in entropy of the water? The latent heat of…

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Q: 1. If 2 kg of liquid water at 360 K are mixed adiabatically and at constant pressure with 3 kg…

A: m1=2 kg T1 =360Km2=3 kgT2 = 380 KFinial Temperature of the mixture.2×c×(360-T)…

Q: 15 A mixture of 1773 g of water and 227 g of ice is in an initial equilibrium state at 0.000°C. The…

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Q: 8. Suppose the 1,000 kJ is needed to raise the 12 kg of now gaseous nitrogen N, from boiling…

A: Given: E=1000 kJ Ti=-196+273= 77 K Tf=20+273=293 K

Q: 1- You have a string piano string Identical length (0.75m), each frequency set to (440HZ). that…

A: The fundamental frequency of string changes as its tension changes. In other words, when both…

Q: Estimate the entropy change of a 1,585-kg motor whose temperature varies from an ambient temperature…

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Q: 48. On a hot summer day, 4.00×10° Jof heat transfer into a parked car takes place, increasing its…

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

Q: Part 1: Five thousand kilocalories (5000 kcal) of heat flows from a high temperature reservoir at…

A: Entropy change is related to the amount of heat transferred at a temperature T as, ∆S=∆QT∆Q is the…

Q: 30 grams of ice at -5 Celsius melt while being left at room temperature of 28 Celsius.  After…

A: Given data The mass of the ice is m = 30 grams The initial temperature of ice is Ti-ice = -5⁰C = 268…

Q: A. Rank these engines on the basis of the change in entropy of the gas during the isothermal…

A: (A)The change in entropy of the system is,The change in entropy of the gas each phase of the cycle…

Q: On a winter day, a certain house loses 5.20 x 10° J of heat from the warm 25°C interior to the cold…

A: As per Bartleby rules, we are to answer the first three sub-parts of a question when specific…

Q: In a mechanical power cycle, the air contained in a piston-cylinder occupies 0.004 m3 and undergoes…

A: Concept used: There is no heat loss or heat gain during an adiabatic process.

Q: The temperature at the surface of the Sun is approximately 5,100 K, and the temperature at the…

A: temperature of surface of sun(TS)=5100 K Temperature of surface of earth(TE)=291K Energy(Q)=4.50 X…

Q: A heat engine absorbs 2500 J of heat at 250°C and expels 2000 J at a temperature of 50°C. The change…

A: Given, Q1 = 2500 J T1 = 250 C∘ = 250+273.15 = 523.15 K Q2 = 2000 J T2 = 50 C∘ = 50+273.15 = 323.15 K…

Q: 1. A gas obeys the following equation of state: ap² T m³K bar mol where a = - P(v − b) = RT + -0.001…

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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

Q: 5. If the change in system entropy for a given process is -8.3 J/(mole.K): (A) What can be known…

A: Given, change in system entropy for a given process is -8.3 J/(mole. K) ∆Ssys = -8.3 Jmol K We know…

Q: #2. Suppose 2.35 moles of an ideal gas expands to twice its volume isothermally at 298 A) How much…

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Q: Initially 5 mol of an ideal gas, with CV,m = 12.5 J K-1 mol-1, %3D are at a volume of 5 dm3 and a…

A: Note: As per Bartleby guideline only question has to be solved at a time. Kindly upload other…

Q: What is the decrease in entropy (in J/K) of 27.5 g of water that condenses on a bathroom mirror at a…

A: The heat transferred by water at bathroom mirror is, Q=mL       (I)           Q=heat transfered,…

Q: Air is compressed by a 15-kW compressor from P1 to P2. The air temperature is maintained constant at…

A: It is given that,

Q: E) All statements are false. 15- Consider two equal volumes of Helium, each have the same…

A: two equal volumes of Helium, each have the same temperature, pressure and number of molecules and…

Q: Heat flows into 1kg of ice at 0°C, melting it, then warming the liquid up to 100°C, then boiling the…

A: Given, Mass of ice, m=1kg The temperature when ice melting starts, T1=0°C The temperature when…

Q: What is the change in entropy of 1,000 kg of ice at 0.0˚ when it melts and 15. What is the change in…

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