A reversible, adiabatic process is necessarily isenthalpic. Why or why not?

Q: Universal gas constant, R = 8.3145 J mol=1 K-1 1. The Helmholtz function of a certain gas is given…

A: gas constant= R= 8.3145 Jmol-1K-1 Helmholtz function is given by:

Q: If I know that the change in entropy of a system where heat was added is 30 J/K, and that the…

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Q: We have n moles of an ideal gas that expands reversibly through an isothermal process, when doubling…

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Q: Two blocks, each containing two moles of silver (Cp = 25. 35 joules per kelvin per mole) are brought…

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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: 1.75 kg of carbon dioxide sublimate from solid dry ice to a gas at a pressure of 100 kPa and a…

A: Given mass of carbon dioxide m=1.75 kgTemperature T=194.7 KLatent heat of sublimation L=5.77×105…

Q: If you add 400 J of heat to a system so that the final temperature of the system is 200 K, what is…

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

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Q: The initial temperature and pressure for one mole of an ideal gas is (Cv = 5 cal mol-1 deg-1) 27oC…

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Q: 1. Show that, when two different gases A and B of volume V and Vg and with N and NR molecules…

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Q: What is the change in entropy of helium gas with total mass 0.140 kg at the normal boiling point of…

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Q: If I add 30J of heat to a system so that the final temperature of the system is 300K, what is the…

A: Entropy change = [Heat change in process÷ Temperature ] Heat change = 30J Temperature = 300K

Q: hydrogen is contained in a constant volume tank at the initial conditions: 0.25 kg, 227°C, 100kPa.…

A: Given  Volume is constant. m=.25kg=250g T1=227 degree celsius P1=100 KPa T2=27 degree celsius

Q: 1. Two moles of a monatomic ideal gas such as helium is compressed adiabatically and reversibly from…

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Q: •7 ILW A 50.0 g block of copper whose temperature is 400 K is placed in an insulating box with a 100…

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Q: Three moles of an ideal gas undergo a reversible isothermal compression at temperature 19.0 ∘C.…

A: Data Given ,  Work done ( W ) = 1500 J Temperature ( T ) = 19°C = ( 19 + 273 ) K.     = 292 K…

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: One mole of an ideal monoatomic gas is subjected to the processes in the figure below: State 1 has…

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Q: 2. Helium expands polytropically in a piston-cylinder from an initial pressure and volume of 3800…

A: The equation describing a polytropic process is given by PVn=constant Work done in a polytropic…

Q: What is the change in entropy of helium gas with total mass 0.135 kg at the normal boiling point of…

A: The mass of Helium is 0.135kg, and temperature is 4.216K, the heat of vaporization is 2.09x104J/kg.

Q: 3 moles of O2 at 1 atm and 500K expands isothermally to 0.3 m3. What is the change in entropy of the…

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Q: A heat engine takes in 1500 J of heat at 2000 K and rejects 950 J of heat at 1000 K. Find (a) the…

A: Apologies. We only answer one question at a time. we will answer the first one as the exact others…

Q: 1. If 528 kJ of heat are added to 2.25 kg of helium at constant volume process when the initial…

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Q: Estimate the change in molar entropy when a sample of argon (c) is compressed from 2.0 dm³ to 0.5…

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Q: 1.00-mol sample of H2 gas is contained in the left side of the container shown in Figure P22.48,…

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Q: The number of macroscopically indistinguishable ways in which a certain physical system can be a in…

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Q: Calculate the entropy change when 3 moles of an ideal gas are allowed to expand isothermally at 298…

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Q: A 2.00-L container has a center partition that divides it into two equal parts as shown. The left…

A: The gases given are at room temperature. The partition is removed and gases are allowed to mix. It…

Q: Given the partition function of a certain gas is given by Z= C (V-nb)N (T³N/2), the entropy is given…

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Q: If one mole of an ideal gas (Cp,m = 5R/2) is expanded isothermally at 300 K until it’s volume…

A: Cp,m = 5R2Temperature = T = 300 kInitial volume = V Final volume = 3V

Q: The difference in entropy AS=Sg-SA for two states A and B of a system can be computed by AS=[dQ/T…

A: We know that there is always increase in the entropy of the universe. But for irreversible process…

Q: What is the entropy change for 3.20 mol of an ideal monatomic gas undergoing a reversible increase…

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Q: A cylinder contains one liter of air at room temperature (300 K) and atmospheric pressure (105…

A: Volume of gas in gas cylinder=1L The temperature (T)=300 K. The pressure (P)=105 N/m2. The surface…

Q: 1 mole of hydrogen gas, which has a heating heat of CP(J/mol.K) =27.17 + 3.8.10-3 T, is 2 atm and At…

A: In this question we have to find the final pressure of the gas according to the conditions given in…

Q: A 2.00-L container has a center partition that divides it into two equal parts as shown below. The…

A: Increase in entropy after mixing will be,

Q: What is the change in entropy of helium gas with total mass 0.140 kg at the normal boiling point of…

A: Given that mass of the helium gas and normal boiling point of helium and Alpha given the heat of…

Q: B9] The figure below describes n moles of an ideal gas undergoing a Carnot cycle. (P.V) (i) () (P.V)…

A: The Carnot cycle consists of the following four reversible processes. (i) Adiabatic compression (ii)…

Q: A large factory furnace maintained at 170 ∘C at its outer surface is wrapped in an insulating…

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Q: Liquid nitrogen, with a latent heat of fusion of LF 25.3 x 10' J/kg, solidifies at a temperature of…

A: Write the given values with the suitable variables. LF=25.3×103 J/kgT=63 Km=1.50 kg Here, LF, T, and…

Q: The temperature of 2.27 kg of air is decreased from 148.9oC to 4.44oC while the pressure is…

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Q: What is the entropy change when 0.50 moles of CHCl₃ vaporizes at 61.0 °C? [∆H(vap) = 29.6 kJ/mol at…

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