Under which condition does the combined entropy of two interacting systems remain constant? Group of answer choices   When there is no heat flow (meaning the two systems are isolated) Where there is no work done When there is no change in internal energy Never

Q: A steel casting (Ĉp = 0.12 kcal/kgK) weighing 40 kg and at a temperature of 500 ° C is quenched in…

A: Given:Mass of steel casting, ms=40 kgTemperature of steel casting, Ts=500°CMass of oil, mo=100…

Q: SANAE IV, a research station of The South African National Antarctic Programme (SANAP), is located…

A: Entropy is the measure of disorderness of any system. If the heat flow occurs through any system,…

Q: A piston cylinder device contains a liquid-vapor mixture of water at 500K. During a constant…

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Q: a) Explain the argument based on the Carnot cycle for why AS= must be a state function for every…

A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,…

Q: Can a system have a higher second-law efficiency than the first-law efficiency during a process?…

A: Yes, a system can have a higher second -law efficiency than the first-law efficiency during a…

Q: Arrange the given systems in order from highest entropy to lowest entropy. liquid salt water at…

A: Since,entropy is defined as the measure of molecular disorder.Molecular disorder increases with…

Q: 6. A closed gaseous system undergoes a reversible process in which 28 BTU of heat are rejected and…

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Q: A frictionless piston-cylinder device contains a liquid-vapor mixture of water at the temperature of…

A: Temperature of liquid-water mixture, T=400 KHeat transfer out from the water, Q=-800 kJFind:The…

Q: Entropy generated due to the heat transfer

A: Given data; An amount ,Q=100kwOne side of wall is maintained ;T1=1270C=127+273=400 KOther side of…

Q: SANAE IV, a research station of The South African National Antarctic Programme (SANAP), is located…

A: Entropy is the measure of disorderness of any system. If heat flow occurs through any system, then…

Q: Entropy generation outside system boundaries can be accounted for by writing an entropy balance on…

A: Entropy is associated with the irreversibility of a system, it denotes the degree o randomness of a…

Q: (a) i) Consider an ideal gas at a given state that expands to a fixed final volume. In the first…

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Q: Select the best answer and explain why you chose that answer. Entropy as a state function can be…

A: This question is based on the concept of entropy.

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: If the entropy change of an adiabatic, closed system process is positive, the process is which of…

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

A: Every time heat moves from a hot object to a cold object, the entropy rises. When ice melts, water…

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

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Q: Problem 2. Entropy Balance Using Table of Properties A piston-cylinder assembly contains 3 kg of…

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Q: In a piston cylinder system, fluid at 0.8 bar occupying 0.09 m3 is compressed reversibly to a…

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Q: Derive an expression for molar entropy of an equally spaced three-level system, where the spacing…

A: to derive an expression for the molar entropy  of an equally spaced three level system with a…

Q: 0.05 kg of a certain gas in a piston and cylinder is compressed reversibly until the pressure…

A: Given: Mass of the gas (m)=0.05kg Initial pressure of the gas P1=0.1025MPa Initial volume of the gas…

Q: Match the corresponding formula from the right column to the description on the left. -S²₁ 1…

A: Introduction The concept of entropy comes from the section law of thermodynamics. The entropy…

Q: Third law of thermodynamics is concerned with: a. the value of absolute entropy b. energy transfer…

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Q: B/ One mol of ideal gas initially at 400 K and 5 atm undergoes a four-step mechanically reversible…

A: As per bartleby guidelines we are allowed to solve only one question if multiple questions are…

Q: An oxygen gas R = 0.2598 KJ/kg°k and k = 1.395. If 4 kg of oxygen undergo a reversible non flow…

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Q: 4 kg block of steel initially at 447 °C is dropped into an insulated tank that contains 20 kg of…

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Q: Give an example of Energy and entropy balances for a system.

A: Let's first understand entropy and energy. Entropy is basically defined as the ratio of the…

Q: A 60-lb aluminum bar, initially at T₂ = 150°F, is placed in a tank together with 190 lb of liquid…

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Q: a) A piston-cylinder device contains a working fluid which undergoes an irreversible and…

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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: Match letters with numbers

A: for solution refer below images.

Q: Oxygen gas is compressed in a piston-cylinder device from an initial state of 0.8 m^3/kg and 45 C to…

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Q: 4. An ideal gas in a piston/cylinder arrangement is cooled in an irreversible process. As its…

A: An ideal gas in a piston/cylinder arrangement is cooled in an irreversible process. As its…

Q: For any irreversible process the net entropy change is Zero positive O negative O infinite O unity O

A: Option b is correct.

Q: A pure crystalline substance at absolute zero temperature is in perfect order, and its entropy is…

A: Third law of thermodynamics: The 3rd law of thermodynamics states that entropy of a perfect crystal…

Q: change in entropy S2 - S1 (in j/kg-K) is

A: Given data; One kg of air;  R= 287 j/kg-K State 1;   T1=200C    v1=0.9 m3  State 2;     T2=200C…

Q: 1.3 0-05 m³ of a gas at 6-9 bar expand reversibly in a cylinder behind a piston according to the law…

A: Note:As per our guidelines we are supposed to answer only one question. Kindly repost other…

Q: The rate of entropy transfer associated with heat transfer from a closed system operating at steady…

A: Entropy is nothing but the measure of irreversibility and is defined as the ratio of heat…

Q: Que: The entropy is defines as S(E,V) = k log r( E) Where k is a universal constant known as…

A: Entropy is associated with the randomness in a system. It is the measure of randomness in various…

Q: of 0.2. The pressure is held constant by nitrogen gas acting against a flexible bladder as shown.…

A: Given Data The mass of the R134a is:m1=12 kg The initial temperature is:T1=2°C The quality is:x=0.2…

Q: When two systems are in contact, the entropy transfer from the warmer system is equal to the entropy…

A: Yes, the above statement is absolutely true. Entropy is a thermodynamic quantity that derives its…

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.