According to the second law of thermodynamics, which of the following statements is false?   a) A process whose only result is the transfer of energy from a body of lower temperature to a body of higher temperature is not possible. b) It is impossible for a thermal machine operating cyclically to completely transform the net amount of heat into work. c) The efficiency of any thermal machine is less or equal to that of a reversible thermal machine operating between the extreme temperatures of the cycle. d) The variation of the entropy of a process, considering only some of the systems involved in it, is always positive or zero.

Q: A thermodynamic process occurs with a heat lost by the system. Does the entropy of the system…

A: No beacuse heat loss means increase in entropy according to second law  of thermodynamics.

Q: Which of the following ia/are not true about the second law of thermodynamics? a. it may provide an…

A: There are 4 laws of thermodynamics. They are given as under, (1) Zeroth law of thermodynamics (2)…

Q: During a cyclic process, a heat engine absorbs 550 J of heat from a hot reservoir, does work and…

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Q: Steam initially at 100° C is mixed with 150 g of ice at -60.0° C, in a thermally insulated…

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Q: A refrigerator has a coefficient of performance of K=2.2 Each cycle, it absorbs 3.35×104 J of heat…

A: A heat pump/refrigerator transfers energy from a cold reservoir to a hot reservoir, provided some…

Q: Free expansion Reversible isochoric heating reversible isothermal expansion Adiabatic comp

A: Given:- Consider the following thermodynamic processes for an ideal gas Free expansion Reversible…

Q: According to the second law of thermodynamics, for any process that may occur within an isolat…

A: Correct option (c) entropy increases  Reason The second law of thermodynamics says that the entropy…

Q: Which of the following statemtents is inconsistent with the second law of thermodynamics? a.…

A: We have to write about the Second law of thermodynamics and have to recognise which of the following…

Q: 40) A certain heat engine extracts 1.30 kJ of heat from a hot temperature reservoir and discharges…

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Q: The energy output of a heat pump is greater than the energy used to operate the pump. Why doesn’t…

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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: Which of the following is not a statement or a consequence of the second law of thermodynamics?…

A: Let's check each options one by one. 1. The internal energy of an isolated system is constant. this…

Q: Which of the following is a reversible thermodynamic process? finite temperature change free…

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Q: 4. A heat engine operates between energy reservoirs of 75°C and 450°C. What is the maximum…

A: A heat engine is operating between energy reservoirs of 75 degree C and 450 degree C. So temp. at…

Q: Suppose a hypothetical engine absorbs 700 J of heat from a hot reservoir and performs 700 J of work,…

A: Zeroth law tells that if a system is thermodynamically equilibrium to the 2nd and 3rd system then it…

Q: Which of the following processes would be a violation of the second law of thermodynamics? (There…

A: The second law of thermodynamics states that the total entropy of an isolated system can never…

Q: What is the maximum possible (Carnot) efficiency of a heat engine operating between 20°C and 600°C?…

A: The initial temperature T1 = 20° = 20+273 = 293K The final temperature T2 = 600°C = 600+273 = 873K…

Q: A 3.7 kg block of ice melts at temperature 0°C. What is the change in entropy of the ice? Let the…

A: Given Mass of ice block is m=3.7 kg Latent heat of fusion is Lf=334×103 J/kg Temperature is…

Q: A Carnot heat engine and an ordinary refrigerator with coefficient of performance 1.80 operate…

A: Given  Temperature limits of carnot engine and refrigerator both are 335 k and 245k. In case of card…

Q: Suppose two systems, each composed of three particles represented by circles, have 30 jof total…

A: Given system A contains two particles each of energy 10 J System B contains three particles of…

Q: Which of the following statements best describe the second law of thermodynamics? a) The total…

A: As we know that the entropy of the system increase in all irreversible process. This is known as the…

Q: Two Carnot heat engines are connected in sequence, with the efficiency of the first engine being k…

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Q: According to the first law of thermodynamics, under what conditions would it be possible for a…

A: Yes. The internal energy of the system will not change if it performs the same amount of work as the…

Q: The engine of a large ship does 2.00×108 J of work with an efficiency of 5.00%.…

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Q: The first law of thermodynamics says we can’t get more out of a process than we put in, but the…

A: The first law of thermodynamics says we can’t get more out of a process than we put in, but the…

Q: An engine goes through the reversible cycle shown. The engine contains n = 8 mol of a diatomic ideal…

A: Given information: Here, P3, T3, and V3 are the pressure, temperature and volume respectively at…

Q: Which of the following processes does not involve a change in entropy?A. An electric heater raises…

A: Entropy change is the measure of change in thermal energy per unit temperature of the system.

Q: A heat engine operates between a high temperature of about 600°C and a low temperature of about…

A: Given: The temperature of hot reservoir is 600°C. The temperature of cold reservoir is 300°C.

Q: A chemical reaction transfers 6250 J of thermal energy into 12.0 moles of a ideal gas while the…

A:

Q: One of the most efficient engines ever built is a coalfired steam turbine engine in the Ohio River…

A: It is given that,

Q: Which statement is not the second law of thermodynamics? -For a natural process, the entropy…

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Q: The engine of a large ship does 2.00 ✕ 108 J of work with an efficiency of 4.00% (a) How much heat…

A:

Q: A thermodynamic process occurs in which the entropy of a system changes by -6 J/K. According to the…

A: Clausius statement of The Second law of thermodynamics states that in any reversible or irreversible…

Q: a heat engine operating between 1000c&7000 c has efficiency equal to 40%of the maximum theoretical…

A:

Q: Which of the following statements about a heat engine must be true?   i) Energy is taken in from a…

A: Statement (i) is false because heat is taken from a hot source and given to a cold sink in order for…

Q: Under which condition does the combined entropy of two interacting systems decrease? Group of…

A: According to third law of thermodynamics, entropy of a system can stay constant or increase but not…

Q: A large block of copper initially at 17.3°C is placed in a vat of hot water (84.1°C). The first 1.10…

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Q: Suppose 1.00 kg of water at 42.5° C is placed in contact with 1.00 kg of water at 19.5° C. (a)…

A: 1.00 kg of water at 42.5° C is placed in contact with 1.00 kg of water at 19.5° C Required b…

Q: The engine of a large ship does 2.00 × 108 J of work with an efficiency of 5.00%. (a) How much heat…

A: a) The expression for find heat transfer into the system is η=WQinQin=Wη Substitute values in the…

Q: With 2.56 × 10^6 J of heat transfer into an engine, it performs only 1.50 × 10^5 J of work. (a) What…

A: Given data:  Heat transfer into the engine QH = 2.56×106 J Work done (W) = 1.50×105 J Required: The…

Q: According to the first law of thermodynamics, which of the following statements is true about the…

A: First law of thermodynamics.

Q: The second law of thermodynamics is a statement that entropy increases during a process. This…

A: The statement from the second law of thermodynamics concludes that total entropy of a system either…

Q: Using the first law of thermodynamics, explain why the total energy of an isolated system is always…

A:

Q: What statement is not true? a. In a thermal cycle, heat energy can be completely transformed into…

A: Here the correct option is (a) .  i.e The statement which is not true is :  • In a thermal cycle,…

Q: A thermodynamic process occurs in which the entropy of a system changes by -8 J/K. According to the…

A: We know that the entropy of the universe can not decrease . As the entropy of the system decreases…