An isobaric steam generating process starts with saturated liquid at 20 psia. The change in entropy is equal to the initial entropy. What is the change in enthalpy during the process? (Hint: not all of the liquid is vaporized) A. -230.4 Btu/lbm B. -196.2 Btu/lbm C. 196.2 Btu/lbm D. 230.4 Btu/lbm

Q: Four pounds of air gain 0.491 Btu/°R of entropy during a non- flow isothermal process. If P1 = 120…

A: Given: The mass of air, m = 4 lb The entropy gain, ds = 0.491 Btu/oR The initial pressure, P1 = 120…

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Q: 28. In a constant volume process, 1.5 kg of air is cooled from 1,200 °K. The change of entropy is…

A: Given data: m=1.5 kgT1=1200 K∆S=-1.492 kJ/°K Need to determine the final temperature.

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Q: During a reversible process there are abstracted 320KJ/s of heat from 1.23kg/s of a certain gas,…

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Q: Four pounds of air gain 0.491 Btu/*R of entropy during a hon-flaw isother mal process. If P1= 120…

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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: In a certain heat exchanger, 50 kg of water is heated per minute from 50 °C to 110 °C by hot gases…

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Q: Superheated steam originally at P, and T, expands through a nozzle to an exhaust pressure P.…

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Q: PROBLEM 4. In a constant volume process, 1.5 kg of air is cooled from 1,200 °K. Change in entropy is…

A: Given:Initial temperature,T1=1200KMass of air=1.5KgChange in entropy,∆s=-0.492KJkLet final…

Q: Four pounds of air gain 0.491 Btu/°R of entropy during a nonflow isothermal process. If p1 = 120…

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Q: PROBLEM 3. In a constant volume process, 1.5 kg of air is cooled from 1,200 °K. KJ Change in entropy…

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Q: QUESTION 14 An ideal gas of specific heat ratio k = 1.3 and constant pressure specific heat capacity…

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Q: 2. Oxygen at the rate of 1.36 undergoes a reversible isobaric process during which min its entropy…

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Q: A typical automobile engine Hot and cold reservoir temperature 530 K, 300 K  Heat loss of hot…

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Q: PROBLEM 1. Oxygen at the rate of 1.36 kg undergoes a reversible isobaric process min during which…

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Q: A typical automobile engine Hot and cold reservoir temperature 580 K, 390 K Heat loss of cold…

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Q: A certain gas with Cp = 0.529 BTU/Ibm-R and R 6.2 Ib-ft/lbm-R, ands from 5 ft³ and 90°F to 20 ft³…

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Q: Q10) One kg of an ideal gas is compressed isothermally at 400K from 100 kPa to 1000kPa in a piston…

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Q: 3. The gain in entropy during an isothermal non-flow process of 5 Ibm of air at 60F is 0.462 BTU/R.…

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Q: Describe the Entropy and Entropy Generation in Daily Life

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Q: Please answer the exact problem. Thank you An adiabatic steam turbine operates with a superheated…

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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.