. A gas is allowed to expand (a) adiabatically and (b) isothermally. In each process, does the entropy increase,decrease, or stay the same? Explain

Q: The temperature of 1.00 mol of a monatomic ideal gas is raised reversibly from 300 K to 400 K, with…

A: Given:- n = 1 mole Tf = 400 K Ti = 300 K

Q: In the absence of any friction and other irreversibilities, can a heat engine have an efficiency of…

A: Operation of a heat engine is depends on the fact that the temperature of sink should be low and…

Q: To increase the efficiency of a heat engine, would it be preferable to produce the same temperature…

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Q: A standard basketball has a mass of 1.4 pounds. This basketball is lifted (3 + y/20) ft above the…

A: Write the given values of this problem. m=1.4 poundsm=1.4×0.45359237m=0.635 kgh=3+y20…

Q: The change in entropy ih an adiabatic processis equalto Zero if the processisreversible and greater…

A: Any thing in nature is not 100% efficient. Similarly if we give heat to a system all heat energy…

Q: Does a heat engine that has a thermal efficiency of 100 percent necessarily violate (a) the first…

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Q: Explain Reversible and Irreversible Processes?

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Q: Suppose you toss 100 coins starting with 60 heads and 40 tails, and you get the most likely result,…

A: The change in entropy is given by, ΔS=Sf-SiΔS=klnWf-klnWi For the case of n particles and two cells,…

Q: When 1.70 ✕ 105 J of heat transfer occurs into a meat pie initially at 20.0°C, its entropy increases…

A:

Q: Consider mixing some of the ice water with the hot water and vice versa so that the two reservoirs…

A: The process of mixing cold water with hot water and vice versa is irreversible.Entropy formation…

Q: What is the entropy change of a gas in J/K (to 2 decimal points) when one mole of a perfect gas…

A: The number of moles of the gas n=1 mol The ideal gas constant R=8.314 J/mol K The initial volume of…

Q: On a hot summer day, 4.00×106 J of heat transfer into a parked car takes place, increasing its…

A: Change in entropy is given by the formula: ∆S=QTwhere,∆S is change in entropyQ is heat transferT is…

Q: Two hundred grams of water at 0 °C is brought into contact with a heat reservoir at 80 °C . After…

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Q: A copper rod of cross-sectional area 5.0 cm2 and length 5.0 m conducts heat from a heat reservoir at…

A:

Q: Illustrate the entropy statement of the second law of thermodynamics?

A: Definition: The second law of thermodynamics states that the total entropy of an isolated system can…

Q: Does the entropy of a system always increase with an increase in temperature?

A: Not always. Entropy of system  increases when heat is transferred. And sometimes temperature can be…

Q: A gas, confined to an insulated cylinder, is compressed adiabatically to half its volume. Does the…

A: The expression for the entropy of the gas is,

Q: Suppose 4.00 mol of an ideal gas undergoes a reversible isothermal expansion from volume V1 to…

A:

Q: A 2.50 mol sample of an ideal gas expands reversibly and isothermally at 360 K until its volume is…

A: The expression for the entropy will be,

Q: Determine the change in (extensive) entropy if 5 kg of water are boiled (isothermally) at 100 °C.…

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Q: We ordinarily say that ΔU = 0 for an isothermal process. Does this assume no phase change takes…

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Q: When 1.60 ✕ 105 J of heat transfer occurs into a meat pie initially at 20.0°C, its entropy increases…

A: The equation for the change in entropy is Here, ΔS is the change in entropy, Q is the amount of…

Q: To determine the entropy change for an irreversible process between states 1 and 2, should the…

A: Entropy is a state function.  It does not depend on the path, it only depends on initial state and…

Q: This is a symbolic version of Problem 54. When a metal bar is temporarily connected between a hot…

A: Step 1When there is change in heat Q at constant absolute temperature, then entropy changes asQ is…

Q: Suppose that there are two very large reservoirs of water, one at a temperature of 91.0 ∘C and one…

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Q: A 1.20 mol of an ideal gas at 350 K undergoes a free adiabatic expansion from V1 = 12.3 L to V2 =…

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Q: A real (non-Carnot) heat engine, operating between heat reservoirs at temperatures of 524 and 287…

A: given data 2.4kJ of net work 3.6kJ of heat tempratures are 524k and 287k thermal efficiency = ?

Q: 1). For a Carnot engine with a running temperature of 500° C on a cold winter day in Chicago (- 15°…

A: Given data, Temperature of the source = 500oC temperature of the sink = -15oC Value of IC = 35 %

Q: What is the change in entropy in an adiabatic process? Does this imply that adiabatic processes are…

A: The change in entropy,

Q: What three different mechanisms can cause the entropy of a control volume to change?

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Q: When 1.60 ✕ 105 J of heat transfer occurs into a meat pie initially at 20.0°C, its entropy increases…

A:

Q: What is the change in entropy of 20 g of ice at 0 oC when it melts to become water at 0 oC?

A: Given: Mass of the ice is m = 20 g. Initial temperature of ice is Ti = 0 0C =273 0K. Final…

Q: The efficiency of all real engines are less than that of the carnot engine. Why?

A: The efficiency of all real engines is less than Carnot engine because they do not operate through a…