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C) Explain the meaning of the following: 1- AG° is zero: 2- An ( number of...
For a redox reaction, AG = -ART. What is the meaning of n? O a. The...
For a redox reaction, AG = -ART. What is the meaning of n? O a. The number of electrons transferred. b. The sum of the electrons from reduction and oxidation. C. The charge of the cation. d. The charge of the anion.
1. Calculate AG°for the following reaction at 25°C using AG ° = AH ° - TAS°...
1. Calculate AG°for the following reaction at 25°C using AG ° = AH ° - TAS° Fe2O3 (s) + 3 H2(g) → 2 Fe (s) + 3 H2O (1) 2. Calculate AG ° for the same reaction using AG°f values Fe2O3 (s) 3 H2(g) → 2 Fe (s) + + 3 H20 (1) + 3. Calculate AGº of the following reaction: 2C (s) H 2 (g) → C2H 2 (g) Use Hess' Law, AG° = AG°1 + AG°2 + AG°3...
Question (4) a) In a transportation algorithm, explain the meaning of an improvement index that is...
Question (4) a) In a transportation algorithm, explain the meaning of an improvement index that is equal to zero in the final iteration (optimal solution). (1 point) b) In a minimization transportation problem, explain the meaning of an improvement index that is equal to 5. (1 point) c) In a transportation algorithm, explain what happens when the solution to a transportation problem is degenerate (number of used cells < number of columns + number of rows -1). (1 point)
1. There are several voltages defined as follows: 2F Explain the meaning of each. 2. There...
1. There are several voltages defined as follows: 2F Explain the meaning of each. 2. There are several efficiencies defined in a fuel cell as follows: Maximum possible (ideal) efficiency or n. f x 100 Ah Cell Actual Efficiency na = eiency'a -x100 Fuel Cell Actual Efficiency na H pas Discuss the meaning of each and explain which you would use when. 3. Derive the Nernst equation for a methane/oxygen fuel cell in terms of the pressures. Anode: CH4 +...
1. Which of the following best describes the meaning of the multiplicities next to the number...
1. Which of the following best describes the meaning of the
multiplicities next to the number 1 in the preceding diagram?
Stocks are traded in only one exchange.
Stocks are traded in at least one exchange.
Stocks are traded in a minimum of zero exchanges.
Stocks are traded in a maximum of many exchanges.
Both c and d are correct.
2. Which of the following best describes the meaning of the
multiplicities next to the number 2 in the preceding...
1) Explain the meaning of absolute zero on the Kelvin scale: a. is the freezing point...
1) Explain the meaning of absolute zero on the Kelvin scale: a. is the freezing point of water b. gas molecules quit moving at this temperature c. is a practical limit, theory allows lower d. heat can flow from an object at this temperature 2) What characteristic of water makes it ideal as a practical engine coolant? a. highest specific heat b. lowest specific heat c, highest boiling point d. lowest freezing point 3) A piston has an area of...
Task 2. Using standard values of free energy AG, determine AG for the following ion-exchange reac...
Task 2. Using standard values of free energy AG, determine AG for the following ion-exchange reactions and draw a conclusion about their possible direction. Examine results experimentally Caco, + 2H+-> H2O + Ca + CO2 To determine neutralization heat AHacestr it is necessary to refer the heat quantity to 1 mole of the substance, namely to alkali since acid is taken in excess (see alkalis and acids molarities and volumes). It is also necessary to take into account that ΔΗ...
I. Write the equilibrium constant expression, K for the following reaction Fe"(ag) FENCS(ag) SCN (ag) + CFENCS D 2....
I. Write the equilibrium constant expression, K for the following reaction Fe"(ag) FENCS(ag) SCN (ag) + CFENCS D 2. In part A of Experiment 34, it was assumed that all of the SCN added to the reaction mixture was converted to product (FeNCS). Which of the following best explains why that assumption was valid? A) The moles of Fe added equaled the moles of SCN- added. B) In part A, the SCN was the limiting reactant whereas in part B,...
1.) Complete the following conversions using the correct number of significant figures, if applicable. 2 Moles...
1.) Complete the following conversions using the correct number of significant figures, if applicable. 2 Moles of NaOH into molecules of NaOH 29.3 grams of Mo into moles of Mo 5.6 x 1024 molecules of Ag into grams of Ag 2.) If you are combusting 2.5 grams of ethane with 2 moles of O2 in the reaction: 2C2H6 + 7O2 à 4CO2 + 6 H2O Determine the limiting reagent. For the limiting reagent, determine the mass of the leftover material....
1. The reaction A → B + C is zero order with respect to A. When...
1. The reaction A → B + C is zero order with respect to A. When [A]0 = 0.544 M, the reaction is 28 % complete at 91.5 min. Calculate the half-life for this reaction. 2. Consider the following reaction. Calculate the value of the rate constant.. 2 A + B →→ 2 C A B C Rate Trial 1 0.64 0.56 0.012 7.463 Trial 2 1.28 0.56 0.012 14.926 Trial 3 0.64 1.12 0.012 14.926 Trial 4 0.1...
For a redox reaction, AG = -ART. What is the meaning of n? O a. The number of electrons transferred. b. The sum of the electrons from reduction and oxidation. C. The charge of the cation. d. The charge of the anion.
1. Calculate AG°for the following reaction at 25°C using AG ° = AH ° - TAS° Fe2O3 (s) + 3 H2(g) → 2 Fe (s) + 3 H2O (1) 2. Calculate AG ° for the same reaction using AG°f values Fe2O3 (s) 3 H2(g) → 2 Fe (s) + + 3 H20 (1) + 3. Calculate AGº of the following reaction: 2C (s) H 2 (g) → C2H 2 (g) Use Hess' Law, AG° = AG°1 + AG°2 + AG°3...
Question (4) a) In a transportation algorithm, explain the meaning of an improvement index that is equal to zero in the final iteration (optimal solution). (1 point) b) In a minimization transportation problem, explain the meaning of an improvement index that is equal to 5. (1 point) c) In a transportation algorithm, explain what happens when the solution to a transportation problem is degenerate (number of used cells < number of columns + number of rows -1). (1 point)
1. There are several voltages defined as follows: 2F Explain the meaning of each. 2. There are several efficiencies defined in a fuel cell as follows: Maximum possible (ideal) efficiency or n. f x 100 Ah Cell Actual Efficiency na = eiency'a -x100 Fuel Cell Actual Efficiency na H pas Discuss the meaning of each and explain which you would use when. 3. Derive the Nernst equation for a methane/oxygen fuel cell in terms of the pressures. Anode: CH4 +...
1. Which of the following best describes the meaning of the
multiplicities next to the number 1 in the preceding diagram?
Stocks are traded in only one exchange.
Stocks are traded in at least one exchange.
Stocks are traded in a minimum of zero exchanges.
Stocks are traded in a maximum of many exchanges.
Both c and d are correct.
2. Which of the following best describes the meaning of the
multiplicities next to the number 2 in the preceding...
Task 2. Using standard values of free energy AG, determine AG for the following ion-exchange reactions and draw a conclusion about their possible direction. Examine results experimentally Caco, + 2H+-> H2O + Ca + CO2 To determine neutralization heat AHacestr it is necessary to refer the heat quantity to 1 mole of the substance, namely to alkali since acid is taken in excess (see alkalis and acids molarities and volumes). It is also necessary to take into account that ΔΗ...
I. Write the equilibrium constant expression, K for the following reaction Fe"(ag) FENCS(ag) SCN (ag) + CFENCS D 2. In part A of Experiment 34, it was assumed that all of the SCN added to the reaction mixture was converted to product (FeNCS). Which of the following best explains why that assumption was valid? A) The moles of Fe added equaled the moles of SCN- added. B) In part A, the SCN was the limiting reactant whereas in part B,...
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