26. It is impossible for a refrigerator working in a cycle to produce only the effect of absorbing heat from a cold object and releasing the same amount of heat to a hot object.
Q: The temperature of the cold reservoir of the engine is 305 K. It has an efficiency of 0.23 and…
A: The problem can be solved by using the concept of efficiency of a heat engine. The answer for the…
Q: n moles of CH4, considered as an ideal gas, are taken through the following thermodynamic cycle: A…
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 Carnot engine is running at 30% efficiency and at a rate of 12 cycles/s. It absorbs 1000 J of…
A: Given data as per question efficiency =30% Heat Absorb =1000 j Calculations Efficiency(η)= 1−T2T1η=…
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: 7. Write the First Law of Thermo- dynamics in terms of changes in specific volume and changes in…
A: To write: The first law of thermodynamics in terms of changes in specific volume and changed in…
Q: Consider mixing some of the ice water with the hot water and vice versa so that the two reservoirs…
A: The process of mixing cold water with hot water and vice versa is irreversible.Entropy formation…
Q: Compute the internal energy of a 10-mol sample of triatomic gas at 300 K.
A: For ideal gas internal energy is given by U =f2nRT
Q: Calculate the work done in Joules by an engine during this reversible cycle. 9 p(atm) 2 8 7 6 5 4 3…
A:
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…
A:
Q: An ice-making machine operates in a Carnot cycle. It takes heat from water at 270 K and rejects heat…
A: Given: Heat extracted from cold reservoir per cycle is given; 27. Thermal efficiency of this…
Q: 12. A Carnot ideal heat engine has its high temperature reservoir at 620 K. During each cycle this…
A:
Q: The inside and outside temperature of a refrigerator are 273K and 303K respectively. Assuming that…
A: Option
Q: A refrigerator has a coefficient of performance equal to 4.00. The refrigerator takes in 110 J of…
A:
Q: In the thermodynamic cycle depicted in the PV-diagram below, the NET work done BY the system is P PA…
A:
Q: A Carnot heat engine receives heat from a thermal energy reservoir at 1150°C and has a thermal…
A:
Q: During each cycle of its operation, a certain gasoline engine consumes 500 joules of chemical while…
A: Write the given values with the suitable variables. Q1=500 JQ2=300 J Here, Q1 and Q2 are the heat…
Q: In the electrical power plant, the easy way to increase the efficiency is to keep the temperature of…
A: The relation between the efficiency of the heat engine and the temperature of the cold and hot…
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: 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: Question 13 The coefficient of performance of a refrigerator is 2 . It absorbs 50 J of heat from the…
A: Concept: Here, the question is from Thermodynamics. Given in the Question The Coefficient of…
Q: In every cycle of its operation, a Carnot engine takes in 640 J of heat from a reservoir at 380 K…
A: Given, heat taken from reservoir, Q = 640 J temperature of reservoir, TH = 380 K TC = 300 K
Q: 6. Write the First Law of Thermodynamics in terms of in- ternal energy, work, and heat.
A: Introduction: Internal energy is defined as the energy associated with the random, disordered motion…
Q: 9. A neatly arranged bookshelf is very orderly system and has low entropy why is it safe to assume…
A: Entropy, the measure of a system's thermal energy per unit temperature that is unavailable for doing…
Q: The surface of the Sun is approximately at = 700 K, and the temperature of the Earth’s surface is…
A:
Q: 4) The turbines at a coal-powered power plant were just upgraded, resulting in an improvement in…
A: increase in efficiency = 3.32 % Heat transferred into the heat engine in one day = 2.25×1014 J
Q: A Carnot engine is running at 30% efficiency and at a rate of 12 cycles/s. It absorbs 1000 J of…
A:
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: In Batman, The Dark Knight Rises, Batman is working on an ideal heat engine for the bat mobile that…
A:
Q: 7. A refrigerator operating on the reversed Carnot cycle has a measured work input of 200 kW and…
A:
Q: A thermal engine absorbs 1500 J of heat from a gas at a temperature of 250°K and discards 1200 J of…
A: a)We know that work done is given as Qin -Qout hence work done = 1500 J -1200 J =300 J b) Thermal…
Q: 18. Combine the 1st and 2nd laws of thermodynamics for a PVT system so as to show that, for any…
A: Answer : We know from first law of Thermodynamics, if dU denotes the change in the internal energy…
Q: How can the thermal conduction of heat from a hot object to a cold object increase entropy when the…
A: Concept used: Second law of thermodynamics is used. Heat flows from a hotter object to a colder one.
Q: 10. Compute the amount of latent heat taken up when 5 kg of liquid water evaporates.
A: Latent Heat Latent heat is defined as the amount of heat required for a state change. This heat does…
Q: 127. Water is heated on a stove. The temperature of the water rises (i) from 20°C to 30°C (ii) from…
A:
Q: 7. Suppose a box containing 27 cells for 4 particles moving around to occupy. If the number of cells…
A: In case I Entropy is given by S1=kBln(27C4) In case ll S2=kBln(8C4) KB is Boltzman Constant.
Q: 1. An engine with an efficiency of 0.2 absorbs 485J of heat per cycle. (a) How much work does it…
A:
Q: c heat impute (q), e internal energy c
A: Given as,
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: A heat engine provides a net power output of 14 kW and has an efficiency of 23 %. The engine rejects…
A:
Q: 53. When an aluminum bar is connected between a hot reservoir at 725 K and a cold reservoir at 310…
A: Given : Temperature of hot reservoir (Th) = 725 K Temperature of cold reservoir (Tc) = 310 K Energy…
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