A quantity of an ideal gas in an isolated system expanded isothermally and reversibly at 400 K from a volume V1 to a volume V2. During the expansion, the gas absorbs 200 J of heat from the reservoir in contact with it. If the gas expanded freely V1 to

Q: the change in the entropy by using average specific heat. the change in the exergy. the useful work.…

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Q: An iron horseshoe of mass 1.47 kg is taken from a furnace at 660 ◦C and dropped into 1.83 kg of…

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Q: A system of 100 kg mass undergoes a process in which its specific entropy increases from 0.3 kJ/kg k…

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Q: 2- 1 kg of water in a piston-cylinder assembly, T1 = 300 ° C, P1 = 200 kPa, passes a process to its…

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Q: Determine the change in the entropy of air,in kJ/kg-K, as it undergoes a change of state from 100…

A: Given : The initial pressure is .The initial temperature is .The final pressure is .The final…

Q: A rigid tank contains an ideal gas at 40°C that is being stirred by a paddle wheel. The paddle wheel…

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Q: A piston-cylinder device contains 0.66 kg of nitrogen gas at 140 kPa and 37°C. The gas is now…

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Q: - Exercise D02: A cylinder-piston arrangement contains m = 1 kg of water, initially in the saturated…

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Q: 1 kg of water, T1 = 300 ° C, P1 = 200 kPa in a piston-cylinder assembly passes a process to its…

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Q: Dry saturated steam at p1 = 3.5 MPa is contained in a cylinder-piston arrangement. It is brought…

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Q: a=2, f=3 A vertical "2a" cm diameter piston-cylinder device contains an unknown ideal gas at 1 bar…

A: as per our company guidelines we are supposed to answer ?️only first 3 sub-parts. Kindly repost…

Q: Starting from the 1st law of thermodynamics, prove that the change in the entropy of an ideal gas…

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Q: During a reversible process, 1.44 kg/s of gas rejects 316.3 kJ/s of heat isothermally at 24.2°C. For…

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Q: What is entropy and its application?

A: Entropy measures randomness or disorder of the system or it is the measure of a system's thermal…

Q: Heat flows through a wall of a house at a steady-state on a day when the temperature of the outdoor…

A: From the given data,the question asked for total entropy generation. For that take inside and…

Q: As a result Of heat transfer to the surroundings durİng a constant-pressure process, 0.375 kg Of…

A: Given that,Process 1-2: Constant pressure heat rejection (Internally reversible)Mass = m = 0.375…

Q: Oxygen (molar mass 32 k g / k m o l ) expands reversibly in a cylinder behind a piston at a constant…

A: Given that ,  molar mass of Oxygen =32 kg/kmolConstant pressure = 3.06 bar Initial volume = 0.01…

Q: A 40-lb aluminum bar, initially at Ta = 150°F, is placed in a tank together with 190 Ib of liquid…

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Q: A system of 100 kg mass undergoes a process in which its specific entropy increases from 0.3 kJ/kg k…

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Q: 1 kg of water, T1 = 300 ° C, P1 = 200 kPa in a piston-cylinder assembly passes a process to its…

A: Given Data⇒ Mass of water (m) = 1 kg P1=200 KPa T1=3000C=573 K Piston cylinder assembly Constant…

Q: A body of constant heat capacity c, and initial temperature T, is placed in contact with a heat…

A: Given: The temperature of hot body, TH = T2 The temperature of cold body, Tc = T1

Q: Under what circumstances can the entropy of a system decrease for a spontaneous process?

A: Whenever there is some heat rejection from the system the entropy of the system decreases.

Q: 0.03 m3 of nitrogen having molecular weight 28 contained in a cylinder behind a piston is initially…

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Q: The temperature of two identical gases is increased from the same initial temperature to the same…

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Q: An iron horseshoe of mass 1.47 kg is taken from a furnace at 660 ◦C and dropped into 1.83 kg of…

A: Given:  m1=miron=1.47 kgT1=660°Cm2=mwater=1.83 kgT2=8.5°Cc2=cw=4186 J/kg.Kc1=ciron=448 J/kg.K

Q: Two pounds of a certain gas(Cv = 0.17 BTUlb−R , R = 50.2 ft−lbflb−R) at 20 psia and 80 deg F are…

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Q: A piston-cylinder device contains 13 kg of refrigerant-134a at 750 kPa and 70 ∘C. The refrigerant is…

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Q: A heat source at 600 K loses 1000 kJ of heat to a sink at 300 K. The Entropy generated in this…

A: As per question we given determine the Entropy generated in this process would be equal

Q: Q3: (A) Determine the entropy change of system and surroundings for the problem shown in this…

A: Given:  Tsystem = 200 K Tsurrounding = 300 K Q = 70 KJ

Q: An infinitely large sheet is subjected to a gross stress of 350 MPa. There is a central crack 5/π cm…

A: Given Data σ=350MPa  σys=500MPa2a=5π

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.