Homework Answers
u didn't give any units or previous question, suggest you to check your units and taking antilog of negative quantity is different from taking normal antilog.
For the 14th question,
Both ΔH and ΔS are negative.
condition describes an exothermic process that involves a decrease in system entropy. In this case, ΔG will be negative if the magnitude of the TΔS term is less than ΔH. If the TΔS term’s magnitude is greater than ΔH, the free energy change will be positive, such a process is spontaneous at low temperatures and nonspontaneous at high temperatures.
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the correct answer to #11 is supposed to be b but i keep getting c. what...
1) positive, greater than 0 OR negative, less than 0 2) positive, greater than 0 OR...
1) positive, greater than 0
OR negative, less than 0
2) positive, greater than 0 OR negative, less
than 0
3) positive, greater than 0 OR negative, less
than 0
4) positive, greater than 0 OR negative, less
than 0
5) smaller, larger, smaller or larger depending on temp.
FOLLOW-UP PROBLEM 20.7 Determining the Effect of Temperature on AG A reaction is nonspontaneous at room temperature but is spontaneous at 500°C. What can you say about the signs and...
11. Consider the following reaction with the equilibrium concentrations written below at 25°C. You notice that...
11. Consider the following reaction with the equilibrium concentrations written below at 25°C. You notice that entropy has increased so it is possible this is a spontaneous reaction in the forward direction. However, you do not have information about the enthalpy of reaction so you cannot use AG AH-TAS to check. You are only given the concentrations of the reactant and product at equilibrium. Show mathematically whether the reaction is spontaneous Ad 7 2B Equilibrium concentrations 10.112] (0.189)
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?
26. What is the relativism and Br Brill Br A) Constitutional isomers Bro B) Diastereomers C)...
26. What is the relativism and Br Brill Br A) Constitutional isomers Bro B) Diastereomers C) Enantiomers D) Identical 27. Which of the following statements is true? A) The product is favored in reaction in which AH° is a positive value. B) Entropy decreases when an acyclic compound forms a ring. C) In homolytic bond cleavage, entropy decreases and favors formation of products. D) The starting material is favored in a reaction in which AH° is a negative value. 28....
2. Decide whether each of the following statements is true or false. If false, rewrite it...
2. Decide whether each of the following statements is true or false. If false, rewrite it to make it true. a. Entropy of the universe increases in all spontaneous reactions. wo False If entropy is bw enough it con be spontaneous, b. Reactions with a negative free energy change (A-Gº <0) are product-favored and occur with rapid transformation of reactants to products. True c. An exothermic reaction will always be spontaneous. I NO when AH is negative the reaction can...
the first one is supposed to be meant spontaneous. thanks ction to be non-spontaneous at any...
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 >...
and HCO 2. Carbonated beverages are acidic because CO, reacts with water to form CO2 (g)...
and HCO 2. Carbonated beverages are acidic because CO, reacts with water to form CO2 (g) + H2O (1) ---> H(aq) + HCO, (aq) For this reaction, AH = -12 kJ/mole and K. = 1.4x108 at 25°C. For HCO, (aq), S = 95J/mole K, AG = -587 kJ/mole a. You take your soda out of your cold refrigerator and let it warm up to room temperature (250C). Heat is a in this reaction so as the temperature increases, the reaction...
APP-17 Problem Set 11 CHEM 1252 October 11, 2019 Textbook Reading Assignment: 12.5-B Additional Practice Problems:...
APP-17 Problem Set 11 CHEM 1252 October 11, 2019 Textbook Reading Assignment: 12.5-B Additional Practice Problems: 12.43-44.46-48 50-55,57,59 61,63,65,67,73,75,61 1. A certain reaction has a r.-10.5 and a + 50.5 UK (a) Explain whether or not the reaction is endothermic or exothermic AHCo Endo thermic (b) Explain if the reaction is leading to an increase, decrease, or no change in disorder of the system. (c) Is the reaction spontaneous at 0 °C? 2. Use data from Appendix 4 (Table 14.3)...
A) AS should be positive for I and positive for II. B) AS should be negative...
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...
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...
1) positive, greater than 0
OR negative, less than 0
2) positive, greater than 0 OR negative, less
than 0
3) positive, greater than 0 OR negative, less
than 0
4) positive, greater than 0 OR negative, less
than 0
5) smaller, larger, smaller or larger depending on temp.
FOLLOW-UP PROBLEM 20.7 Determining the Effect of Temperature on AG A reaction is nonspontaneous at room temperature but is spontaneous at 500°C. What can you say about the signs and...
11. Consider the following reaction with the equilibrium concentrations written below at 25°C. You notice that entropy has increased so it is possible this is a spontaneous reaction in the forward direction. However, you do not have information about the enthalpy of reaction so you cannot use AG AH-TAS to check. You are only given the concentrations of the reactant and product at equilibrium. Show mathematically whether the reaction is spontaneous Ad 7 2B Equilibrium concentrations 10.112] (0.189)
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?
26. What is the relativism and Br Brill Br A) Constitutional isomers Bro B) Diastereomers C) Enantiomers D) Identical 27. Which of the following statements is true? A) The product is favored in reaction in which AH° is a positive value. B) Entropy decreases when an acyclic compound forms a ring. C) In homolytic bond cleavage, entropy decreases and favors formation of products. D) The starting material is favored in a reaction in which AH° is a negative value. 28....
2. Decide whether each of the following statements is true or false. If false, rewrite it to make it true. a. Entropy of the universe increases in all spontaneous reactions. wo False If entropy is bw enough it con be spontaneous, b. Reactions with a negative free energy change (A-Gº <0) are product-favored and occur with rapid transformation of reactants to products. True c. An exothermic reaction will always be spontaneous. I NO when AH is negative the reaction can...
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 >...
and HCO 2. Carbonated beverages are acidic because CO, reacts with water to form CO2 (g) + H2O (1) ---> H(aq) + HCO, (aq) For this reaction, AH = -12 kJ/mole and K. = 1.4x108 at 25°C. For HCO, (aq), S = 95J/mole K, AG = -587 kJ/mole a. You take your soda out of your cold refrigerator and let it warm up to room temperature (250C). Heat is a in this reaction so as the temperature increases, the reaction...
APP-17 Problem Set 11 CHEM 1252 October 11, 2019 Textbook Reading Assignment: 12.5-B Additional Practice Problems: 12.43-44.46-48 50-55,57,59 61,63,65,67,73,75,61 1. A certain reaction has a r.-10.5 and a + 50.5 UK (a) Explain whether or not the reaction is endothermic or exothermic AHCo Endo thermic (b) Explain if the reaction is leading to an increase, decrease, or no change in disorder of the system. (c) Is the reaction spontaneous at 0 °C? 2. Use data from Appendix 4 (Table 14.3)...
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...
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