. A sample consisting of 150 g of CO molecules at 300 K is expanded isothermally from an initial pressure of 5.0 bar to a final pressure of 2.0 bar. Calculate q, w, ∆U, ∆H, ∆Ssys, ∆Ssurr, and ∆Stotal for the process two ways: (a) reversibly and (b) irreversibly against a constant pressure of 2.0 bar. Cp,m is constant at a value of 29.14 J/mol* K, and temperature of the surroundings is 273 K. State whether each process is spontaneous.

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Q: At what temperature does a process with [delta]H = +30. KJ and [delta]S = +300. J become…

A:

Q: A reaction has ΔH∘rxn= -134 kJ and ΔS∘rxn= 320 J/K.  At what temperature is the change in entropy…

A: Given: -ΔH°rxn = -134 KJΔS°rxn = 320 J/KIf everything is carried out at a constant temperature and…

Q: (4) For the reaction below, the reaction is said to be: A +B →C AH = +30 kJ, AS = +50 J/K…

A:

Q: For a  process to be  spontaneous  (ΔG must be negative, ΔS must be positive, ΔH must be negative,…

A: Spontaneous reaction- A reaction said to be a spontaneous when decrease in enthalpy and increase in…

Q: Consider the reaction N2(g) + 2H,O(1)–→2NO(g) + 2H2(g) for which AH° = 752.2 kJ and AS° = 351.6 J/K…

A: The detailed question had been solved on white sheets of paper attached below.  Here it is important…

Q: HNO2(aq) + OH (aq) H20(1) + NO2 (aq) K= 4.5×1010 What is the standard change in Gibbs free energy at…

A: Given :- K = 4.5 × 1010                T = 25 °C                 R = 8.314 J/K.mol  To calculate :-…

Q: A reactions has ΔH°298 = 100 kJ/mol and ΔS°298 = 250 J/mol·K. Is the reaction spontaneous at room…

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Q: For a certain chemical reaction, the equilibrium constant K = 5.1 × 10 ° at 10.0 °C. Calculate the…

A: Given temperature is 283 Kelvin

Q: How does temperature effect spontaneity? Under what conditions is enthalpy the dominant…

A: We know that, ΔG = ΔH - TΔS For a reaction to be spontaneous ΔG must be negative in sign ΔG < 0 ,…

Q: Consider the reaction Co(g) + H20(1)–→CO2(g) + H2(g) for which AH° = 2.800 kJ and AS° = 76.80 J/K at…

A: Given ∆Ssys = 76.80 J/K Temperature, T = 298.15 K Enthalpy change,  ∆H = 2.800 kJ * (1000 J/1 kJ) =…

Q: At what temperatures will a reaction be spontaneous if ΔrH° = +62.4 kJ and ΔrS° = +301 J/K?

A: The given values are: ∆rH°=+62.4 kJ=62400 J ∆rS° =+301 J K-1 For a reaction, the relation between…

Q: 9. A chemical reaction under standard state has the enthalpy of reaction: A,H° = +117 kJ and the…

A: B) The reaction is entropy driven.

Q: For the isothermal expansion of a gas into a vacuum,ΔE = 0, q = 0, and w = 0. (a) Is this a…

A: (a) The spontaneous process is the process which starts on its own or initiate without any external…

Q: A process increases the entropy of the system by 128 J/mol K and absorbs 54 kJ/mol of heat from the…

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Q: Calculate the entropy changes for the following processes: Melting of one mole of tin at its melting…

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Q: starting from the definition of Gibbs Free Energy, the 1st law of thermodynamics, the 2nd law of…

A: To derive the criteria for spontaneity for Gibbs free energy.

Q: Place the following in order of  increasing molar entropy at 298 K.  CO,    C 5H 12 ,    H 2

A: Given CO C5H12 H2 Arrange them in order of increasing molar entropy = To be determined

Q: Which one of the following is not equal to zero?   A.  Standard molar entropy of a perfect crystal…

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Q: The following reaction for the formation of glucose from carbon dioxide and water:…

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Q: Al203(s) + 3H2(g , p = 1 bar) → 2AI(s) + 3H2O(I) at T = 298 K, answer each of the following by doing…

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Q: What is the significance of the change in Gibbs free energy (ΔG) for a reaction?

A: In thermodynamics free energy or Gibbs free energy is the energy that is used to express the total…

Q: onsider the reaction 2NaOH(aq) + H2(g)2Na(s) + 2H2O(l) for which H° = 368.6 kJ and S° = 15.30 J/K…

A: Solution- 2NaOH (aq)+ H2O(g)  →2Na(s)+H2O(l)∆Ho= 368.6 kJ ∆S° = 15.30 J/K at 298.15 K.(1). NaOH…

Q: A reaction has a standard enthalpy change, ΔH, of +10.00 kJ/mol at 298 K. The standard entropy…

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Q: (Q78) The equilibrium constant (Keg) for the formation of dinitrogen tetroxide (N2O4) from nitrogen…

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Q: Consider the reaction 2NaOH(aq) + H2(g)2Na(s) + 2H2O(l) for which H° = 368.6 kJ and S° = 15.30 J/K…

A:

Q: Calculate the standard entropy change for the following reaction at 25°C. CH,(g) + 2 O2(g)→ CO2(g)…

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Q: What is Gibbs free energy, and what is ΔG for a reaction, and what does it mean if ΔG is positive,…

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Q: Consider a process in which the entropy of a system increases by 105 J K−1 and the entropy of the…

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Q: What is the difference in entropy between 25 g of N2 at standard conditions and 25 g of N2 at 400 °C…

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Q: What is the significance of the change in Gibbs free energy (∆G)for a reaction?

A: The significance of the change in Gibbs free energy (∆G)for a reaction: (i) If ∆G for a reaction…

Q: Consider a process in which the entropy of a system increases by 125 J K−1 and the entropy of the…

A: Entropy change of the universe is the summation of entropy change of the system and entropy change…

Q: Place the following in order of  increasing molar entropy at 298 K.  CO  ,   C 5H 12 ,    H 2

A:

Q: Describe Gibbs' free energy and give an example of a spontaneous process.

A: The process which occur by itself without any external energy is known as spontaneous process.

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Q: Why do exothermic processes tend to be spontaneous at low temperatures? Why does their tendency…

A: According to second law of thermodynamics,

Q: 4. The entropy change for the process H2O(s) → H2O(1) is 22.1 J/K and requires that that…

A: Given:  ∆Ssystem = 22.1 J/K  qsystem = -qsurrounding = 6.0 KJ = 6000 J  Temperature (T) = 10°C = 283…

Q: What will be the enthalpy of reaction in KJ if the entropy (ΔS) is 519 J/K at 73oC?

A: Given  Change in Entropy ( ∆S ) = 519 Joule/K  Temperature ( T )  = 73℃…

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Q: 5. When 2.00 mol of an ideal gas at 330K and 3.50 atm are compressed isothermally to some pressure…

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Q: Without consulting the tables, what sign do you expect for the change in entropy (delta S) for the…

A: Given reaction: P4 (g) + 10 Cl2 (g) → 4PCl5 (g). We have to find the sign of ∆S for this reaction.

Q: Calculate the standard change in Gibbs free energy of the following reactions at Standard Ambient…

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Q: A reaction has AH = -112 kJ and ASan = 354 J/K. At what temperature is the change in entropy for the…

A: The given data contains, ∆H°reaction=-112 kJ∆S°reaction=354 J/K

Q: In order to be a spontaneous reaction, what has to be true about Gibbs Free Energy?

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