Q. 52: A heat engine converts 1/6th of input heat into work. When temperature of sink is reduced by 62 K the efficiency of engine becomes 1/3. The temperature of source is (a) 362 K (b) 372 K (A) 112 K 200 K
Q: 170 g of water at 105°C is converted to steam. What is the entropy change of the water that is now…
A: latent heat of boiling water = 2256 KJ/kg = 2256 J/g mass = 170 g Heat required to change the state…
Q: *70. D The wattage of a commercial ice maker is 225 W and is the rate at which it does work. The ice…
A:
Q: In many refrigeration systems, the working fluid is pressurized in order to raise its temperature.…
A: Given that: Initial pressure (P1) = 140 kPa Final pressure (P2) = 1200 kPa Isentropic efficiency…
Q: A container with 50 g of a certain liquid (c = 4186 J/kg · °C, Lv=2265 kJ/kg) at 22 °C is heated up…
A: Given:mass of liquid, m = 50×10−3 kgspecific heat , C = 4186 J/kgoClatent heat of vaporization, Lv…
Q: A gas engine absorbs 2500 kJ of heat in a 5.5 s heat cycle. The amount of heat exhausted per cycle…
A:
Q: a) A heat engine operates at a 40% efficiency. The heat input is 20,000 J. How much work does this…
A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: As an engineer in an automotive company, you are assigned to design an engine with the highest…
A: The main thermodynamic principle to design the heat engine is the 2nd Law of Thermodynamics. The…
Q: *42. o Compressed air can be pumped underground into huge caverns as a form of energy storage. The…
A: From ideal gas law, PV=nRT Thus, we can find the internal energy to be, U=52nRT =52PV =527.7×106…
Q: The heat engine shown in the figure uses 2.0 mol of a monatomic gas as the working substance.…
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Q: On a winter day, a certain house loses 1.12 x 108 J of heat to the outside. What is the total change…
A:
Q: .A Carnot engine has a power output of 200 kW. The engine operates between two reservoirs at 20°C…
A: Given: The output power of the Carnot engine is 200 kW. The temperature of the cold reservoir is 20…
Q: A. The food compartment of a refrigerator, shown in fig., is maintained at 4°C by emoving heat from…
A:
Q: 9. A heat engine does 2000 J of work and it loses 6000 J through the exhaust and friction. What is…
A: The first part of the question is asking for the efficiency of a heat engine. The efficiency of a…
Q: A container with 41 g of a certain liquid (c = 4171 J/kg · °C, Lv=2224 kJ/kg) at 22 °C is heated up…
A:
Q: Air is used in a Carnot engine where the volumes at the beginning of the constant temperature heat…
A: Write the given values with the suitable variables. V1=0.356 cm3V2=5.573 cm3 Here, V1 and V2 are the…
Q: On a hot summer day, 4.00×106 J of heat transfer into a parked car takes place, increasing its…
A: Change in entropy is given by the formula: ∆S=QTwhere,∆S is change in entropyQ is heat transferT is…
Q: 50. A monatomic ideal gas undergoes the reversible cyclic process (ABCA) shown in the PV diagram.…
A:
Q: The second principle of thermodynamics implies that (a) thermal energy cannot be entirely converted…
A: Correct option is A second law of thermodynamics states that , "It is impossible to construct a…
Q: QUESTION 19 Consider N solar collectors (N= 12, 14, 16), of dimension [2m x 2m, 2m x 1.5 m, 2m…
A: A black body is an ideal object that absorbs all the radiation irrespective of its wavelength. Real…
Q: A heat source of unknown temperature supplies energy of (74 + 700)k] to a Carnot heat engine. If…
A: It is given that,
Q: We consider a thermodynamic system. If ∆U represents the increase in its internal energy and W, the…
A: C
Q: An often-overlooked consequence of power generation is “thermal pollution” from excess heat…
A:
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: The 2nd Law of thermodynamics states that the change in internal energy of a system equals the net…
A: According to 2nd law of thermodynamics states that the change in internal energy of a system equals…
Q: O converts work to an equivalent amount of heat O takes heat in, does work, and loses energy as heat…
A: Required : What does a heat engine do.
Q: A Carnot refrigerator is operating between thermal reservoirs with temperatures of 27.9 C and 0.0 C.…
A: The formula for the efficiency of Carnot engine (Ƞ) is,
Q: Figure beside shows a p-V graph of an p(kPa) isothermal process at 600 K for 2 moles ideal gas in a…
A:
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: A Carnot heat engine operates between Tc = 264 K and Th= 485 K. What is its efficiency? O 0.54 O…
A:
Q: 1. A coal-fired power plant produces 9.00 × 1013 J of electrical energy in one day, and operates…
A:
Q: On a hot summer day, 4.00×106J of heat transfer into a parked car takes place, increasing its…
A: The expression used to find average temperature is T=T1+T22 Insert values in the above equation…
Q: A particular Carnot heat engine has two reservoirs held at different temperatures of 320 K and 2220…
A: Required : The correct option.
Q: On a hot summer day, 3.73 106 J of heat transfer into a parked car takes place, increasing its…
A: Given: Heat exchanged, dQ=3.73×106 J Initial temperature, Ti=31.2°C Final temperature, Tf=50.6°C…
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: During a thermodynamic cycle. An ideal Thermal machine absorbs heat Q₂70 from a a hot source and…
A: Answer is below
Q: A heat engine operates with sink temperature 25° with the efficiency of 30%. By how many kelvins…
A: Given, here Temperature of Heat sink is TC and initial and final efficiencies are denoted as η1 and…
Q: a) In a certain process, the temperature rises from 0.00 °C to 100 °C as 1000 J of heat are…
A: Solution:-Given that(a) Initial temperature (T1)=0°CFinal temperature (T2)=100°CHeat extracted =1000…
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