A cycle is to be designed to have an “efficiency of 0.78 between the temperature reservoirs . If the high temperature is 895.7°C, then the low temperature in °C will be a. 530.11 > b.-15.89 B C 7595 d. 257.11 o € 197.05 -

Q: A Carnot engine operates between reservoirs at 625 and 315 K. If the engine absorbs 115J per cycle…

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Q: An engine has a hot reservoir that contains 20 MJ of heat energy at 400º c, and a cold reservoir…

A: Given that:QH=20 MJTH=400°CQC=15 MJTC=5°C

Q: A refrigerator has a coefficient of performance of 4. If th absorbs 30 cal of heat from cold…

A: Given Coefficient of performance of a refrigerator , COP=4Refrigerator absorb heat from cold…

Q: 13. If a 0.06247 kg ice cube initially at 0.00° C is allowed to melt in a Styrofoam cup holding…

A: mass of ice (m) = 0.06247 kg initial temperature of ice = 0oC mass of water (m') = 0.497 kg Initial…

Q: A refrigerator has a coefficient of performance of 2. The ice (cice = 2090 J/kg.ºC) tray compartment…

A: Given,  Coefficient of performance K = 2 Temperature of ice tray compartment  Ti = -14 degree…

Q: 1. A Carnot engine operates between reservoirs at 590 and 295 K. If the engine absorbs 115J per…

A: High temperature TH=590 K Low temperature TL=295 K Work W=115 J

Q: 1. A heat engine is found to have an efficiency of 0.3. If it does 180 J of work per cycle, what are…

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Q: A refrigerator has a coefficient of performance of 2. The ice (cjce = 2090 J/kg.°C) tray compartment…

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Q: A 2.00-kg piece of wood slides on the surface shown. The curve slides are perfectly smooth but the…

A: The law of conservation of energy states that energy can neither be created nor be destroyed. Thus,…

Q: 4.A ideal heat engine runs between a hot reservoir at 527 C and a cold reservoir at 27 C. 1. Make a…

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Q: 2.A refrigerator has a coefficient of performance equal to 6.00. The refrigerator takes in 110 J of…

A: For a refrigerator  Work done is given by W= Q1 - Q2 Q1  is the Heat expelled to the hot reservoir.…

Q: A refrigerator has a coefficient of performance of 1. The ice (cice = 2090 J/kg.°C) tray compartment…

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Q: An engine working between 300 K and 600 K has work output of 800 J per cycle. The amount of heat…

A: Assuming a Carnot Engine, the efficiency of the engine is given by:  n = 1 - Tc/Th = 1 - (300/600) =…

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: A large block of copper initially at 23.0°C is placed in a vat of hot water (83.3°C). The first 1.40…

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Q: Air with a flow rate of 20 m³/s enters a compressor at 100 kPa and 20°C and is compressed to 400…

A: Given Data: The mass flow rate of air m˙=20  m3s The inlet temperature of the air T1=20° C Inlet…

Q: 1. A coal-fired power plant produces 9.00 × 1013 J of electrical energy in one day, and operates…

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Q: 1. Which of the following ERM diagram represents a refrigerator? A. в. с. D. TH TC Tc TH QH Qc Qc QH…

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Q: 1. (a) What is the best coefficient of performance for a refrigerator that cools an environment at…

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Q: 1. At the beginning of the compression process of an air-standard Otto cycle, P: -1 bar, T = 290 K,…

A: Given Data, P1=1bar=100kpa T1=290k V1=400 cm3 =400*10-6m3 T3=2200k rc=8

Q: A refrigerator has a coefficient of performance of 1. The ice (cjce = 2090 J/kg.°C) tray compartment…

A: The coefficient of performance of the refrigerator is given as, COP=1, The temperature of ice tray…

Q: q = 0 for an isothermal process. a) True b) False

A: Given: q=0 in isothermal process

Q: 2. In lecture, it was stated that the ideal efficiency of the Otto cycle is € = 1 -(V2/V) 1 where Vi…

A: Here is the Answer and Explanation

Q: 1. What is the best coefficient of performance possible for a hypothetical refrigerator that could…

A: Given: The temperature of the cold reservoir is -190oC. The temperature of the hot reservoir is…

Q: The temperature of the cold reservoir of a refrigerator is -12 °C while in its hot reservoir is 33…

A: Given Sink temperature T2 = -12 oC = 273+(-12) = 261 K Source temperature T1 = 33 oC =273+33 =306 K

Q: 1. A heat engine with an efficiency of 35% does 600 J of work in each cycle. How much heat must be…

A: Given values: Efficiency of heat engine in percentage, η=35 % Work, W=600 J

Q: 2. A heat pump cycle whose coefficient of performance is 2.5 delivers energy by heat transfer to a…

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

Q: 1. What is the efficiency of a steam engine if it absorbed an energy of 2.5 x 108 J from the boiler…

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Q: 2.0Kg of water at 0 degree celcius heated to 100 degree celcius. Compute its change in entropy. Mc…

A: Check out the form of chemical

Q: If an engine operates between 250 C and 25 C, what is its maximum thermodynamic efficiency? Select…

A: 1. option b is correct that is Q = 0 In adiabatic process, heat transfer is zero.

Q: A process at constant volume pressure takes n mole rigid diatomic from an initial temperature T to a…

A: Given value--- initial temperature = T. final temperature = 3T. We have to find--- Change in…

Q: 1. A certain gasoline engine has an efficiency of 31%. What would the hot reservoir temperature be…

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Q: Identify the processes in the cycle. Þ 1. Path AB = The temperature in (1) is 350 K, the work done…

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Q: A 4.50-kg block of ice at 0.00℃ falls into the ocean and melts. The average temperature of the ocean…

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Q: 1. An engine with an efficiency of 0.2 absorbs 485J of heat per cycle. (a) How much work does it…

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Q: Suppose an OTEC system operates with surface water at 22 °Cand deep water at 4.0 °C. What is the…

A: Given:-               Suppose an OTEC system operates with surface water at 22 °C and deep water at…

Q: c heat impute (q), e internal energy c

A: Given as,

Q: 10 During an isothermal process at 88°F, the pressure on 8 lb of air drops from 80 psia to 5 psig.…

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Q: 7. A heat engine cycle consists of a closed cycle subdivided into four legs with the heat transfer…

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Q: 5. A heat engine with a high temp reservoir at 400K has an efficiency of 0.20. What is the max…

A: Write the equation for the efficiency of the heat engine. Efficiency η=1-Lower reservoir…

Q: Consider a heat engine that uses reservoirs at 800.°C and 0.00 °C. Calculate the maximum possible…

A: The expression for the efficiency of the heat engine is given by,  η=1-T2T1×100 -----(1) Here, η is…

Q: 3. How much energy is transferred from a diesel engine to the exhaust and cooling system by heat if…

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Q: . Find the change in entropy when a 3.00 kg of boiling water changes to steam at 100°C.

A: