When 1.5 kg of water at 14.1 ∘C is mixed with 3.0 kg of water at 39.9 ∘C in a well-insulated container, what is the change in entropy of the system?

Q: 1kg of air is allowed to .19 expand reversibly in a cylinder behind a piston in such way the…

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Q: A 5 L of saturated liquid water at a constant pressure of 150 kPa is contain in an insulated…

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Q: Two rigid tanks are connected by a valve. Tank A contains 0.6 m^3 of water at 330 kPa and 90 percent…

A: Solution: Given Data: VA=0.6 m3PA=330 kPaxA=0.9VB=0.5 m3PB=250 kPaTB=250oCT∞=25oC   To Find: (a) The…

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: Q1) Can the entropy of a closed system decrease during a reversible process ? Write down what needs…

A: Entropy Entropy is the measure of disorder in the system i.e. more the disorder entropy increases.…

Q: Using the appropiate table change in specific specific ent P1 = State 1 I sobanc Cooling 1 State 2…

A: Given: State 1 of water - Isobaric cooling  State 2 of water - saturated liquid  P1=5 MPa, T1=360°C

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: The total work done, 2- The total heat transfer, 3- The total energy change, and 4- The total…

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Q: Argon initially at -77 °C and 9720 kPa is contained in 1.2 m3 rigid tank. The tank is heated until…

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Q: Water is contained in a closed rigid tank at an initial pressure of 1200 kPa. Heat transfer occurs…

A: Given data: -  The initial pressure is P1 = 1200 kPa. The final pressure is P2 = 7 MPa. The mass of…

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: An insulated piston–cylinder device initially contains 250 L of air at 125kPa and 300 K. Air is now…

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Q: A bucket contains 20 kg of water at 120 •C, and 8 kg of water at 240 •C and the two fluids are…

A: Given: Mass of water in partition 1 (m1)=20kgTemperature of water in partition 1 (T1)=120°C or…

Q: A 40-kg aluminum block initially at 227°C is brought into contact with a 40-kg block of iron at 50°C…

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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: A small rigid storage tank with a volume of 0.12 m3 contains 0.9 kg of argon at 40°C. Heat transfer…

A: STEP 1: The volume of the tank is V = 0.12 m3. The mass of the argon is m = 0.9 kg. The initial…

Q: A- A rigid cylinder containing 0.4 m³ of nitrogen at 1 bar and 300 K is heated rever until the…

A: Since the container is rigid, the heat addition is done at constant volume. The mass of the nitrogen…

Q: Water in a closed rigid tank, initially at 689 kPa, 427 oC is cooled to a final state of 138 kPa.…

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

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Q: Five kilograms of air has a pressure of 200 kPa at temperature of 27 ° C. It is heated at constant…

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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: piston-cylinder

A: OPTION b) 8.712 Btu/R

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: An insulated tank contains 5 kg of water at a pressure of 75 kPa and 40% of its mass is in the vapor…

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Q: 5.0 0.04 m of nitrogen contained in a cylinder behind a piston is initially at 1.05 bar and 15°C.…

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Q: Argon (3 kg) is compressed adiabatically in a piston-cylinder device from 0.41 m³, 0.1 MPa and 27…

A: Solution.

Q: 18. 1m3 of air is heated at constant pressure from 15 to 300C, and is then cooled at constant volume…

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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.