In which case below, a redox reaction is not necessarily a spontaneous reaction? (Hint, the reaction may not be under standard condition.)
∆G is negative
E > 0
K > 1
K > Q
None of above
In which case below, a redox reaction is not necessarily a spontaneous reaction? (Hint, the reaction...
4. Which of the following is consistent with a spontaneous endothermic reaction? (A) AH> 0, AS <0, AG <0 (D) AH<0, AS > 0, AG>O (B) AH > 0, AS > 0, AG <0 (E) AH>0, AS <0, AG>0 (C) AH<0, AS <0, AG<0 5. For the reaction H, (g) +S (8) HS (g), AF- -20.2 kJ/mol and AS = +43.1 J/K mol. Which of these statements is true? (A) The reaction is only spontaneous at low temperatures. (B) The...
Question 11 Which of the following would indicate a spontaneous Redox reaction? O A. Eo = +0.010 O B.AGO = -23.2kJ O C. Kc = 9.16 X 10-6 O D. both "A" and "B" O E. both "A" and "C" D Question 12 Which of the following indicates a reaction that is always non-spontaneous? O AH<0 & ASCO AH<0 & AS>0 O AH>0 & ASCO O AH>0 & AS>0 none of these indicate non-spontaneity Question 13 Which of the following...
For a spontaneous redox reaction under a given set of conditions, which of these must be true? Select all correct choices. ΔG∘=0 ΔG>0 ΔG<0 E∘cell>0 ΔG∘>0 E∘cell<0 Ecell<0 Ecell=0 ΔG=0 E∘cell=0 ΔG∘<0 Ecell>0
the first one is supposed to be meant spontaneous. thanks ction to be non-spontaneous at any temperature, which of the following В. Tur a chemical reaction to b conditions must be met? AS > 0, AITO AS > 0, AIT <0 AS <0, AHP <0 AS <0, AHP>0 D. 2. Place the following in on lowing in order of decreasing standard molar entropy. N204(8) NO(g) NO2(g) 204 > NO2 > NO B) NO > NO2 > N204 E) NO2 >...
If a standard cell potential is E∘cell=+0.85VEcell∘=+0.85V at 25 ∘C∘C, is the redox reaction of the cell spontaneous? If a standard cell potential is at 25 , is the redox reaction of the cell spontaneous? Yes, a redox reaction with a positive standard cell potential is spontaneous under standard conditions. No, a redox reaction with a positive standard cell potential is not spontaneous under standard conditions. No, a redox reaction will not take place at all.
1. True or False: a) A reaction is spontaneous if ΔSnn > 0. b) The Fourth Law of Thermodynamics states: The entropy of a pure, perfect crystal at O K is. c) For A(g) + B(g) D(g) + E(g), if ΔΗ'm < 0 and Δ5%n > 0, the reaction is spontaneous regardless of temperature. d) For A(g) + B(g) → D(g) + E(g), ifAH"m > 0 and Δ5%n < 0, it will be possible to find a temperature above which...
8. For the following reaction, CC2(s) + 2H2O(l) + Ca(OH)2(s) + C2H2(g) which is spontaneous at all temperatures, one would predict that a. AG is positive for all temperatures. d. AH is - and AS is for the reaction. b. AH is + and AS is for the reaction. e. AH is + and AS' is- for the reaction. c. AH is - and AS is for the reaction. 9. Calculate the standard absolute entropy, in J/mol K. of Mg:...
Q1 Q2 Q3 Is a reaction with the following values of AH and AS spontaneous at 350 K?. AH 107 kJ AS = - 285 J/K A. The reaction is not spontaneous. B. The reaction is spontaneous. C. The reaction is at equilibrium. D. Cannot be determined Which of the following reactions represent AG°f? A. Na (s) + 1/2 F2 (g) → NaF (s) B. 2 H2 (g) + O2 (g) + 2 H20 (1) C. H30+ (aq) + OH-...
5. Consider a reaction starting with reactants and products in nonstandard state conditions, and a negative value of the nonstandard free energy change, AG. Which of the following best describes the redox reaction? A. Q=K and Ecell=0 B. Q<K and Ecell<0 c. Q<K and Ecell > 0 D. Q> K and Ecell <0 E. Q> K and Ecell > 6. The standard cell potential (Eºcell) of the reaction below is +1.08 V. What is the value of AGº for the...
Chemistry midterm help please! <3 7. What is the difference between the AU and AH of a reaction? A) AU is a state function, while AH is not a state function B) AH is a state function, while AU is not a state function. C) AU = heat of reaction at constant volume conditions; AH = heat of reaction at constant-pressure conditions D) AU is the heat of reaction, AH is the work done by the reaction E) AU =...