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Which of the following best describes this dissociation reaction? (Hint: Remember that AG - AH -...
QUESTION 4 5 points Save Answer Which of the following best describes this dissociation reaction? (Hint:...
QUESTION 4 5 points Save Answer Which of the following best describes this dissociation reaction? (Hint: Remember that AG = AH - TAS, how does the entropy term change at different temperatures?) NH subscript 4 N O subscript 3 left parenthesis s right parenthesis rightwards arrow N H subscript 4 to the power of plus left parenthesis a q right parenthesis plus N O subscript 3 to the power of minus left parenthesis a q right parenthesis capital delta H...
Practice Problemm that we've observed the qualitative relationships between AH, AS, and AG, let's calculate quantitative...
Practice Problemm that we've observed the qualitative relationships between AH, AS, and AG, let's calculate quantitative value ofΔΟη n for the dissolution of solid ammonium nitrate in water at 25 C: the NO, NH (ag)+NO, (aq) So (J/mol K) Aİlf (kJ/nnol) -365.6 132.80 -206.57 151 112.8 146.4 NH4NO3 (s) NH4 (ag) NOs (aq) Remember that ΔΗ'n,-Σ n ΔΗΥ (products)-Σ n ΔΗΥ (reactants) and ASoys-Σ n So (products) Σ n S (reactants). Then use ΔG AH -TAS y to find the...
AG°= AH-TAS AG=AGº+RTinQ where R=8.314 J/mol K 1. Calculate AGº for the following reaction at 25 °C if AH°= -1854 kJ...
AG°= AH-TAS AG=AGº+RTinQ where R=8.314 J/mol K 1. Calculate AGº for the following reaction at 25 °C if AH°= -1854 kJ/mol; AS°= -236 J/mol K CH-COCH3(g) + 402(g) → 3C02(g) + 3H2O(1) 2. NH.NO, dissolving in water is a spontaneous process. As it dissolves, the temperature of the solution decreases. Based on this, what must the signs (positive or negative) of AG, AH, and AS be?
8. For the following reaction, CC2(s) + 2H2O(l) + Ca(OH)2(s) + C2H2(g) which is spontaneous at all temperatures, on...
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:...
5. Above what temperature does the following reaction become nonspontaneous AS = -153.2 J/K Given: AH...
5. Above what temperature does the following reaction become nonspontaneous AS = -153.2 J/K Given: AH = -1036 k); 2 H2(g) + 3 O2(g) → 2 502(g) + 2 H20(g) AG - AH' - TAS 46 = -1036000 -(T)(-153.2) = 0 6. What is the minimum temperature required for the spontaneous conversion of Cla(I) to CCL() Given: AH"vap) is 57.3 kJ/mol and ASva) is 164 J/(mol)? AG AH - TAS = 298 K 06 = 57300 - (298)(164) 46°= 8428...
4. Which of the following is consistent with a spontaneous endothermic reaction? (A) AH> 0, AS...
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...
For the reaction 2C4H10 (g) + 1302 (8) — 8CO2 (g) + 10H20 (g) AH° is...
For the reaction 2C4H10 (g) + 1302 (8) — 8CO2 (g) + 10H20 (g) AH° is -125 kJ/mol and AS is -253 J/K mol. This reaction is spontaneous at all temperatures spontaneous only at high temperature © spontaneous only at low temperature nonspontaneous at all temperatures None of the above
Which of the following describes the temperature dependence of the spontaneity of the reaction below? 2H202(0)...
Which of the following describes the temperature dependence of the spontaneity of the reaction below? 2H202(0) 2H2O()+02(g) ΔΗ--196kl mol-1, AS-126 J K-1 mol-i Select the correct answer below: 0 O O O nonspontaneous at all temperatures spontaneous at all temperatures spontaneous at high temperatures and nonspontaneous at low temperatures spontaneous at low temperatures and nonspontaneous at high temperatures
15. The standard Gibbs free energy change (AG%) for the Haber reaction at 298K is -2.83...
15. The standard Gibbs free energy change (AG%) for the Haber reaction at 298K is -2.83 kJ/mol N2(g) + 3H2(g) + 2NH3(g) If the reaction begins with 2.55 atm N2(g) 0.115 atm Hz(g) and 0.488 atm NH3(9) at 298K what is the free energy change (AG) for the reaction under these conditions AND will the reaction be spontaneous under these conditions? (10 points) 16. For the following reactions, predict whether they will tend to be spontaneous at either high or...
please show work and maybe explanations ? Practice Problem 1 Calculate AH and AS for the...
please show work and maybe explanations ?
Practice Problem 1 Calculate AH and AS for the following reaction (the Haber process for the manufacture of ammonia) and calculate if the reaction is favorable at STP. N2(g) + 3 H2(g) 2 NH3(g) (The following information may also be obtained from Appendix C in the Jespersen text.) Compound Enthalpy (kJ/mol) Entropy (J/mol-K) N2(9) H2(g) NH3(g) 0 191.61 130.68 192.45 -46.11 Practice Problem 2 Use the values of AH and AS calculated in...
QUESTION 4 5 points Save Answer Which of the following best describes this dissociation reaction? (Hint: Remember that AG = AH - TAS, how does the entropy term change at different temperatures?) NH subscript 4 N O subscript 3 left parenthesis s right parenthesis rightwards arrow N H subscript 4 to the power of plus left parenthesis a q right parenthesis plus N O subscript 3 to the power of minus left parenthesis a q right parenthesis capital delta H...
Practice Problemm that we've observed the qualitative relationships between AH, AS, and AG, let's calculate quantitative value ofΔΟη n for the dissolution of solid ammonium nitrate in water at 25 C: the NO, NH (ag)+NO, (aq) So (J/mol K) Aİlf (kJ/nnol) -365.6 132.80 -206.57 151 112.8 146.4 NH4NO3 (s) NH4 (ag) NOs (aq) Remember that ΔΗ'n,-Σ n ΔΗΥ (products)-Σ n ΔΗΥ (reactants) and ASoys-Σ n So (products) Σ n S (reactants). Then use ΔG AH -TAS y to find the...
AG°= AH-TAS AG=AGº+RTinQ where R=8.314 J/mol K 1. Calculate AGº for the following reaction at 25 °C if AH°= -1854 kJ/mol; AS°= -236 J/mol K CH-COCH3(g) + 402(g) → 3C02(g) + 3H2O(1) 2. NH.NO, dissolving in water is a spontaneous process. As it dissolves, the temperature of the solution decreases. Based on this, what must the signs (positive or negative) of AG, AH, and AS be?
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:...
5. Above what temperature does the following reaction become nonspontaneous AS = -153.2 J/K Given: AH = -1036 k); 2 H2(g) + 3 O2(g) → 2 502(g) + 2 H20(g) AG - AH' - TAS 46 = -1036000 -(T)(-153.2) = 0 6. What is the minimum temperature required for the spontaneous conversion of Cla(I) to CCL() Given: AH"vap) is 57.3 kJ/mol and ASva) is 164 J/(mol)? AG AH - TAS = 298 K 06 = 57300 - (298)(164) 46°= 8428...
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...
For the reaction 2C4H10 (g) + 1302 (8) — 8CO2 (g) + 10H20 (g) AH° is -125 kJ/mol and AS is -253 J/K mol. This reaction is spontaneous at all temperatures spontaneous only at high temperature © spontaneous only at low temperature nonspontaneous at all temperatures None of the above
Which of the following describes the temperature dependence of the spontaneity of the reaction below? 2H202(0) 2H2O()+02(g) ΔΗ--196kl mol-1, AS-126 J K-1 mol-i Select the correct answer below: 0 O O O nonspontaneous at all temperatures spontaneous at all temperatures spontaneous at high temperatures and nonspontaneous at low temperatures spontaneous at low temperatures and nonspontaneous at high temperatures
15. The standard Gibbs free energy change (AG%) for the Haber reaction at 298K is -2.83 kJ/mol N2(g) + 3H2(g) + 2NH3(g) If the reaction begins with 2.55 atm N2(g) 0.115 atm Hz(g) and 0.488 atm NH3(9) at 298K what is the free energy change (AG) for the reaction under these conditions AND will the reaction be spontaneous under these conditions? (10 points) 16. For the following reactions, predict whether they will tend to be spontaneous at either high or...
please show work and maybe explanations ?
Practice Problem 1 Calculate AH and AS for the following reaction (the Haber process for the manufacture of ammonia) and calculate if the reaction is favorable at STP. N2(g) + 3 H2(g) 2 NH3(g) (The following information may also be obtained from Appendix C in the Jespersen text.) Compound Enthalpy (kJ/mol) Entropy (J/mol-K) N2(9) H2(g) NH3(g) 0 191.61 130.68 192.45 -46.11 Practice Problem 2 Use the values of AH and AS calculated in...
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