Which of the following descriptions about entropy is/are true? 1. It is positive for an isolated system 2. It is zero for a reversible process 3. It is negative for an irreversible process A. 1 and 3 only B. 1 and 2 only C. 2 and 3 only D. All, 1, 2 and 3

Q: A- Define the following with mathematical expression if needed: 1- Closed system, 2- Cycle, 4-…

A: The given question is

Q: Thermodynamic Keys Second Law 91. A closed system undergoes a process in which the work is done by…

A: A close system undergoes a process in which the work is done by the system on the surroundings and…

Q: As shown in the figure, Refrigerant 22 enters the compressor of an air conditioning unit operating…

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Q: Choose correct answer: In a system, mass interaction is equal to zero, energy interaction is equal…

A: In a system, mass interaction is equal to zero, energy interaction is equal to zero, then the system…

Q: 2.- A cylinder is divided into two halves by a conducting piston. The space to the left side of the…

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Q: Which of the following descriptions about entropy is/are TRUE? I. It is positive for an isolated…

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Q: Water vapor enters a turbine operating at steady state at 1000°F, 200 lb/in², with a volumetric flow…

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Q: Air expands through a turbine operating at steady state. At the inlet, p₁ = 150 lbf/in.², T₁ =…

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Q: To decrease the entropy temporarily, the system needs: Heat Work Matter Vacuum Cannot be determined

A: Entropy: The degree of randomness of the energy is called entropy. It is a measure of the…

Q: When a system is taken from state A to state B through a reversible path 1 and again the system is…

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Q: A fluid at 0.6 bar occupying 0.06 m is compressed reversibly to a pressure of 9.5 bar and specific…

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Q: a) Calculate the work output of the turbine. b) Does the expansion process inside this particular…

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Q: A feed water heater operating in steady state has 2 inlets and 1 outlet.  Liquid water enters. from…

A: Given:P1=7 barT1=42°Cm1=70 Kg/sP2=7 barx2=0.98P3=7 barsaturated liquid

Q: A- Define the following with mathematical expression if needed: 1- Closed system, 2- Cycle, 4-…

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Q: can water ever acts counter to entropy to perhaps stop a reaction from moving forward?

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Q: 6. Identify the process/es in which the entropy change is positive among the following. i, Increase…

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Q: A feedwater heater in a vapor power plant operates at steady state with liquid water entering at…

A: Given data  At inlet 1 (liquid water) P1 = 9.0 bar T1 = 45oC = (45 +273)K = 318 K m˙1= 3.2*105 kg/h…

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Q: с. zero d. indeterminate. 95. A closed system undergoes a process in which the work is done by the…

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Q: Need help breaking it down

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Q: he entropy change of an irreversible process can be calculable. A.(True) B.(Fale)

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Q: As shown in the figure, Refrigerant 22 enters the compressor of an air conditioning unit operating…

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Q: Thermodynamie Keys 91. A closed system undergoes a process in which the work is done by the system…

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Q: 3.Air is compressed adiabatically in a piston-cylinder assembly from 1 bar, 300 K to 10 bar, 600 K.…

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Q: Choose the correct statement/s with respect to entropy change during a process a. Entropy…

A: Entropy change during a process

Q: As shown in the figure, Refrigerant 22 enters the compressor of an air conditioning unit operating…

A: Given data: T1=40°FP1=80 lb/in2T2=160°FP2=200 lb/in2T3=90°FP3=200 lb/in2Tai=70°F=529.67 RPair=14.7…

Q: Water within a piston-cylinder assembly, initially at 10 lbf/in.2², 350°F, undergoes an internally…

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Q: Unit mass of a fluid at pressure of 3 bar, and specific volume of 0.19 +0.2× 16 m3/kg, contained in…

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Entropy

In physics, entropy means the amount of disorder or the degree of randomness associated with a thermodynamic system. The system is not self-organized when the entropy of the system is high. For instance, when a system is at an elevated temperature, its molecules are in random motion, vibrating and colliding with each other. During this scenario, the probability of finding a molecule at a particular place twice, is low. Under this circumstance, the system can be said to be in a high entropy.