Suppose that a hydrogen fuel cell, as described in the text, is to be operated at 75° C and atmospheric pressure. We wish to estimate the maximum electrical work done by the cell using, only the room-temperature data at the back of this book. It is convenient to first establish a zero-point for each of the three substances, H2 O2, and H20. Let us take G for both H2 and O2 to be zero at 25°C, so that G for a mole of H20 is -237 kJ at 25°C.(a) Using these conventions, estimate the Gibbs free energy of a mole of H2 at 75°C. Repeat for O2 and H20.(b) Using the results of part (a), calculate the maximum electrical work done by the cell at 75°C, for one mole of hydrogen fuel. Compare to the ideal performance of the cell at 25°C.

Q: Calculate e values for the galvanic cells based on the following overall reactions. Assume that all…

A: Given reactions are : (a). Cr3+ (aq) + Cl2 (g) <--------------> Cr2O72- (aq) + Cl- (aq)   (b).…

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Q: Given that E = 1.88 V. calculate the standard Gibbs energy for the cell at 25 °C. O 538 kJ mol O…

A: Given: E°cell = 1.86 V

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Q: Calculate the emf at 298 K generated by a voltaic cell in which the reaction isCr2O72-(aq)+ 14…

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Q: give proper explanation.

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Q: 3. Consider when 0.025 M Cu2+ ions are used at the cathode and 0.750 M Fe2+ ions are used at the…

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Q: Determine E° for a galvanic (voltaic) cell if ∆G° = -7.4 kJ/mol and n = 3. (F = 96,500 J/(V･mol))

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Q: The following reaction is spontaneous as written when the components are in their standard states:…

A: Answer:Galvanic cell is a type of cell that converts chemical energy into electrical energy via…

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Q: Consider the following reaction and standard cell potential: N2H4(aq) + O2(g) → N2(g) + 2H2O(I)…

A: N2H4(aq) + O2(g) -----> N2(g) + 2H2O(l) Standard cell potential (E°cell) = 1.56 V = 1.56…

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Q: Determine E° for a galvanic (voltaic) cell if ∆G° = -4.5 kJ/mol and n = 3. (F = 96,500 J/(V･mol))

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Q: Consider a fuel cell that uses the reaction of ethanol with oxygen to produce electricity. CH,…

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Q: ΔGo Eo K a 24kJ     b   0.120V   c     0.114 Consider a cell reaction at 25oC where n=3. Fill in the…

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Q: (a) How do the relative magnitudes of Qand K relate to thesigns of ΔGand Ecell? Explain.(b) Can a…

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Q: Determine E° for a galvanic (voltaic) cell if ∆G° = -5.9 kJ/mol and n = 3. (F = 96,500 J/(V･mol))

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Q: What is the maximum amount of work that can be done by an electrochemical cell where E° = 2.23 V and…

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Q: A student made measurements on some electrochemical cells and calculated three quantities: • The…

A: For spontaneous reactions : ∆G should be negative.K should be more than 1.E should be more than 0.

Q: For the cell represented as Al(s)∣Al3+ (aq)∥Sn2+ (aq), Sn4+ (aq)∣Pt(s), how many electrons are…

A: We would first write reduction half reaction and oxidation half reaction.  From this we can check…

Q: Determine E° for a galvanic (voltaic) cell if ∆G° = -3.9 kJ/mol and n = 3. (F = 96,500 J/(V･mol))

A: Given- ∆G°= -3.9kJ/mol = -3900 J/mole (1KJ = 1000J) n=3 F=96500 J/(V.mol)

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Q: Which of the following is not a sufficient condition for a spontaneous process? ΔG 0 ΔE 0(cell) >…

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Q: nitrate, Ni(NO3)2 undergoes electrolysis in order to plate on a sink faucet requiring 2.00 hours…

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Q: Determine E° for a galvanic (voltaic) cell if ∆G° = -5.1 kJ/mol and n = 3. (F = 96,500 J/(V･mol))

A: The objective of this question is to calculate the standard cell potential (E°) for a galvanic cell…

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A: ΔGo = -RTlnK ΔGo = -nFEo

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Q: Given the reaction: 2 H₂O(l) → 2 H₂(g) + O₂(g) for which AH°25°c = +571.7 kJ. Determine the cell…

A: 2H2O(l) = H2(g) + O2(g) Required cell representation Reaction at cathode : O2 + 2H2O + 4e- = 4OH-…

Q: Calculate the standard Gibbs free energy for the following reaction at 25 °C and 1 atm. Based on…

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Q: Determine E° for a galvanic (voltaic) cell if ∆G° = -6.6 kJ/mol and n = 3. (F = 96,500 J/(V･mol))

A: ∆G°= -6.6 kJ/mol = -6.6×103 J/mol n = 3 F = 96500 J/V.mol E°=?

Q: For a cell reaction at 25° C where n= 2 and E° - 0.57 V calculate K. Give your answer as log(k).

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Q: Determine E° for a galvanic (voltaic) cell if ∆G° = -6.1 kJ/mol and n = 3. (F = 96,500 J/(V･mol))

A: Given,  ∆G° = -6.1 kJ/mol and n = 3. (F = 96,500 J/(V･mol) □G° = -nFE°

Q: • The standard reaction free energy AG • The equilibrium constant K at 25.0 °C. • The cell potential…

A: The details solution for this is provided below in attach image. And table is drawn on last page…

Q: Calculate the potential of the electrochemical cell and determine if it is spontaneous as written at…

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Q: What is the equilibrium constant K at 25.0 °C for an electrochemical cell when E° = +0.120 V and n =…

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Q: Determine E° for a galvanic (voltaic) cell if ∆G° = -3.3 kJ/mol and n = 3. (F = 96,500 J/(V･mol))

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Q: Use the References to access important values if needed for this question The free energy of an…

A: The objective of the question is to write the resulting equation to determine the value of F.