10)
K alone can’t decide whether the cell is spontaneous or not.
ΔG less than 0, implies the reaction is spontaneous.
ΔH and ΔS together can predict spontaneousity of the reaction.
Alone they cant.
Answer: C
11)
E = Eo - (0.0592/n) log {[Pb2+]/[Cu2+]}
To make E larger, we should decrease Pb2+ and increase Cu2+
Answer: D
Only 1 question at a time please
30) At constant pressure and temperature, which statement is true? A) All reactions for which k...
A) AS should be positive for I and positive for II. B) AS should be negative for I and positive for II. C) AS should be positive for I and negative for II. D) AS should be negative for I and negative for II. 13) 13) If Q increases, A) AG increases and the reaction becomes less spontaneous. B) AG decreases and the reaction becomes less spontaneous. C) AG increases and the reaction becomes more spontaneous D) AG decreases and...
12) Predict the sign of AS of the system for both of the following. I. 2 C(graphite) + O2(8) - 2 CO(8) II. C6H14(8) - C6H14(1) A) AS should be positive for I and positive for II. B) AS should be negative for I and positive for II. C) AS should be positive for I and negative for II. D) AS should be negative for I and negative for II. 13) If Q increases, A) AG increases and the reaction...
Solve For a process at constant temperature and pressure, if DeltaG is positive, the process is,if DeltaG is negative, the process is, and if DeltaG is zero, the process is. a. at equilibrium, spontaneous, nonspontaneous b. nonspontaneous, spontaneous, at equilibrium c. spontaneous, at equilibrium, nonspontaneous d. spontaneous, nonspontaneous, at equilibrium e. none of these 18. For a chemical reaction to be spontaneous at all temperatures, which of the following conditions must be met? a. DeltaSdegree > 0, DeltaHdegree > 0...
QUESTIONS At constant pressure and temperature, which statement is true? A. All reactions for which AH<0 are spontaneous B. All reactions for which ASKO are spontaneous. C. All reactions for which AG<0 are spontaneous. D. All reactions for which K> 1 are spontaneous.
1) Which of the following oxidation-reduction reactions will be spontaneous in the direction written? Select all that apply. Mg2+ (aq) + Be (s) → Mg (s) + Be2+ (aq) Cu2+ (aq) + Zn (s) → Cu (s) + Zn2+ (aq) Hg2+ (aq) + Cu (s) → Hg (l) + Cu2+ (aq) Pb2+ (aq) + Cu (s) → Pb (s) + Cu2+ (aq) Fe2+ (aq) + Pb (s) → Fe (s) + Pb2+ (aq) 2) What is the value (in V)...
please answer 24 and 25 Use this table to answer the question that follows. Thermodynamic Quantities for Selected Substances at 298.15 K (25°C) Substance AF(kJ/mol AG (kJ/mol). S(J/K-mol) O2 (g) 205.0 S (s, rhombic) SO2(g) SO (8) 0 -269.9 -395.2 -300.4 -370.4 31.88 248.5 256.2 23. Use the above thermodynamic table to calculate the value of ASO at 25 °C for the following reaction. 250,(8) - 2502(g) + O2(g) A. -189.6J/K B. +189.6 J/K C. -15.4 J/K D. +15.4 J/K...
At constant pressure and temperature, which statement is true? All reactions for which ΔS < 0 are spontaneous. All reactions for which K < 1 are spontaneous. All reactions for which ΔG < 0 are spontaneous. All reactions for which ΔH < 0 are spontaneous.
Please answer all parts to this question! parts a through e! This is all one question so I could not post them separately, please also check your answers because the last person got it wrong! Thank you! Will give thumbs up. a. Which of the following species will be reduced by Zn(s), but not by Ag(s) under standard conditions? O Pb(s) O Mg2+(s) O Cl2(g) O Au(s) O A13+ (aq) O None of the above Q5.2 1.8 Points b. Which...
Which of the following would be true for a reaction that has a positive AS and a positive AH? Select one: a. It is not possible to determine without more information. b. This reaction will be nonspontaneous only at high temperatures. c. This reaction will be spontaneous only at high temperatures. d. This reaction will be spontaneous at all temperatures. e. This reaction will be nonspontaneous at all temperatures. You prepared a galvanic cell using Pb(s) | Pb+2(aq) || Hg'...
pls do all Page 12 of 14 36. (15 points) A spontaneous galvanic cell consists of one half-cell that e ontains Agia) and rea ad one half-cell that contains Cucs) and Cu2+(ag). The standard reduction reactions are listed below Cu2+(aq) + 2 e-→ Cu(s) +0.34 V Identify which half reaction is happening at the anode and the cathode reaction for this spontaneous galvanic cell. a. and write the gwerall Calculate E°cell for this reaction. b. for this reaction. Calculate Δ...