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#1,3,60 & 61 1. List at least three factors that result in a positive sign for...
#14, #16, #88, #90, #1, #3, #60 & #61 14. Write the formula for the conjugate...
#14, #16, #88, #90, #1, #3, #60 & #61
14. Write the formula for the conjugate base of each of the following. a. HNO, b. H,SO, C. H SO 15. Write the formula for the conjugate base of each of the following. a. HClO2 b. H.0 C. NH. 16. Write the formula for the conjugate acid of each of the following. a. CHANH, b. PO 3- c. CN d. OH e. No, 88. Suppose that 20.00 mL of a 0.100...
Thermodynamics Practice Problems 1. Predict the sign of AS.(positive or negative) for the following reactions a...
Thermodynamics Practice Problems 1. Predict the sign of AS.(positive or negative) for the following reactions a 2 Mg(s) +,(@) 2 Mgo (s) AS b. CH206(s) → 2C,H,OH(I) + 2003(g) AS c. 2 NH3(g) + CO2(g) → H2O(l) + NH CONH3(aq) AS d. Cu(s) (at 100°C) → Cu(s) (at 25°C) AS 2. Which two variables can indicate if a reaction is spontaneous or not? 3. The second law of thermodynamics tells us that: a Energy is conserved. b. The entropy of...
Short Answer: (4 points each) 1.) Predict whether the entropy change is positive or negative for...
Short Answer: (4 points each) 1.) Predict whether the entropy change is positive or negative for each of the following reactions. GIVE YOUR REASON FOR YOUR PREDICTIONS a) 2KC1O4(s) → 2KCIO3() + O2(8) b) H2O → H2O) c) 2Na(3) + H2O → 2NaOH(aq) + H2() d) N2(g) → 2N) 2.) State whether the sign of the entropy change expected for each of the following processes will be positive or negative, and EXPLAIN YOUR PREDICTIONS. a) PC130) + Cl2(e) → PCls(s)...
1. Which of the following will have the greatest standard molar entropy (Sº)? a. NH3(g) d....
1. Which of the following will have the greatest standard molar entropy (Sº)? a. NH3(g) d. H:0(1) b. He(g) e. CaCO(s) c. C(s, graphite) 2. Indicate which of the following has the highest entropy at 298 K. a. 0.5 g of HCN b. 1 mol of HCN c. 2 kg of HCN d. 2 mol of HCN e. All of the above have the same entropy at 298 K. EVALUATING AS FOR REACTIONS (non-math recognition) 3. Indicate which one of...
4. Indicate which of the following reactions results in a positive AS. a. Ba(NO3)2(aq) + Na...
4. Indicate which of the following reactions results in a positive AS. a. Ba(NO3)2(aq) + Na So. (aq) = BaSO (s) + 2 NaNO,(aq) b. 4 Fe(s) +3 0,(g) = 2 Fe 0,(s) c. 2 Hg) +0,(g)52 H0g) d. Zn(s) + 2 HCl(aq) = ZnCl(aq) +H. (g) e. 2 Na(s)+Cl2(g) = NaCl(s)
1. For the following processes indicate if there is a decrease, no change, or increase in...
1. For the following processes indicate if there is a decrease, no change, or increase in the entropy of the system (5 points) a) Hg() → Hg(s) b) CO2(s) → CO2(g) c) 2Na(s) + Cl2(g) → 2NaCl(s) d) 2 SO2(g) + O2(g) → 2503(g)
(A) Predict whether the change in entropy (ΔS) is positive, negative or near zero for the...
(A) Predict whether the change in entropy (ΔS) is positive, negative or near zero for the following processes at 298K. Provide a molecular level explanation or justification for your prediction. (B) Calculate the change in entropy (ΔS) for the following processes at 298K. i. H2O (s) → H2O (l), melting of ice. ii. Formation reaction for steam (water vapor, H2O (g)). iii. C3H8 (l) → C3H8 (aq), Liquid propane going to aqueous propane. iv. The hydrolysis of the dipeptide glycylglycine...
intended to be a wered by estima . 1. Arrange the following in order of increasing...
intended to be a wered by estima . 1. Arrange the following in order of increasing absolute entropy at 298 K: Hect). Hg(s). C6H6(1). CH3CH3(1) a. Hel). Hg(s). CGHSCH3(1). C6H6(1) b. He(s). Hel). CHECH3(1). C6H6(1) c. C6H6(1). CH3CH3(I). Hg(s). Hg(1) d. CH CH3(1). CH6(). Hg(t). Hg(s) e. He(s). Hg(1), C6H6(). CHSCH 3(1) 2. Which of the following processes would be expected to have a positive AS value? a. 2 H2(g) + O2(g) → 2H2() b. H2(g) → H20(1) c. CO(g)...
17.51 Calculate the entropy change for the following processes. (a) 1.00 mol H,O(s) melts at 0...
17.51 Calculate the entropy change for the following processes. (a) 1.00 mol H,O(s) melts at 0 °C. AH = 6.01 kJ/mol. (b) 2.00 mol CH.() vaporizes at 80.0 °C. AH vap = 30.7 kJ/mol. 17.52 - Calculate the entropy change for the following processes. (a) 2.00 mol NH3(e) vaporizes at -33.0 °C. AHvap = 23.35 kJ/mol. (b) 1.00 mol C,H,OH(s) melts at -114 °C. AHjus = 5.0 kJ/mol. 17.53 Use data from Appendix G to calculate the standard entropy change...
Predict whether the entropy change is positive or negative for each of the following reactions. Give...
Predict whether the entropy change is positive or negative for each of the following reactions. Give reasons for your predictions. a. 2 KClO4(s) + 2 KClO3(s) + O2(g) b. H2O(g) → H20(1) c. 2 Na(s) + 2 H20(1) ► 2 NaOH(aq) + H2(g) d. N2(g) → 2 N(g)
#14, #16, #88, #90, #1, #3, #60 & #61
14. Write the formula for the conjugate base of each of the following. a. HNO, b. H,SO, C. H SO 15. Write the formula for the conjugate base of each of the following. a. HClO2 b. H.0 C. NH. 16. Write the formula for the conjugate acid of each of the following. a. CHANH, b. PO 3- c. CN d. OH e. No, 88. Suppose that 20.00 mL of a 0.100...
Thermodynamics Practice Problems 1. Predict the sign of AS.(positive or negative) for the following reactions a 2 Mg(s) +,(@) 2 Mgo (s) AS b. CH206(s) → 2C,H,OH(I) + 2003(g) AS c. 2 NH3(g) + CO2(g) → H2O(l) + NH CONH3(aq) AS d. Cu(s) (at 100°C) → Cu(s) (at 25°C) AS 2. Which two variables can indicate if a reaction is spontaneous or not? 3. The second law of thermodynamics tells us that: a Energy is conserved. b. The entropy of...
Short Answer: (4 points each) 1.) Predict whether the entropy change is positive or negative for each of the following reactions. GIVE YOUR REASON FOR YOUR PREDICTIONS a) 2KC1O4(s) → 2KCIO3() + O2(8) b) H2O → H2O) c) 2Na(3) + H2O → 2NaOH(aq) + H2() d) N2(g) → 2N) 2.) State whether the sign of the entropy change expected for each of the following processes will be positive or negative, and EXPLAIN YOUR PREDICTIONS. a) PC130) + Cl2(e) → PCls(s)...
1. Which of the following will have the greatest standard molar entropy (Sº)? a. NH3(g) d. H:0(1) b. He(g) e. CaCO(s) c. C(s, graphite) 2. Indicate which of the following has the highest entropy at 298 K. a. 0.5 g of HCN b. 1 mol of HCN c. 2 kg of HCN d. 2 mol of HCN e. All of the above have the same entropy at 298 K. EVALUATING AS FOR REACTIONS (non-math recognition) 3. Indicate which one of...
4. Indicate which of the following reactions results in a positive AS. a. Ba(NO3)2(aq) + Na So. (aq) = BaSO (s) + 2 NaNO,(aq) b. 4 Fe(s) +3 0,(g) = 2 Fe 0,(s) c. 2 Hg) +0,(g)52 H0g) d. Zn(s) + 2 HCl(aq) = ZnCl(aq) +H. (g) e. 2 Na(s)+Cl2(g) = NaCl(s)
1. For the following processes indicate if there is a decrease, no change, or increase in the entropy of the system (5 points) a) Hg() → Hg(s) b) CO2(s) → CO2(g) c) 2Na(s) + Cl2(g) → 2NaCl(s) d) 2 SO2(g) + O2(g) → 2503(g)
intended to be a wered by estima . 1. Arrange the following in order of increasing absolute entropy at 298 K: Hect). Hg(s). C6H6(1). CH3CH3(1) a. Hel). Hg(s). CGHSCH3(1). C6H6(1) b. He(s). Hel). CHECH3(1). C6H6(1) c. C6H6(1). CH3CH3(I). Hg(s). Hg(1) d. CH CH3(1). CH6(). Hg(t). Hg(s) e. He(s). Hg(1), C6H6(). CHSCH 3(1) 2. Which of the following processes would be expected to have a positive AS value? a. 2 H2(g) + O2(g) → 2H2() b. H2(g) → H20(1) c. CO(g)...
17.51 Calculate the entropy change for the following processes. (a) 1.00 mol H,O(s) melts at 0 °C. AH = 6.01 kJ/mol. (b) 2.00 mol CH.() vaporizes at 80.0 °C. AH vap = 30.7 kJ/mol. 17.52 - Calculate the entropy change for the following processes. (a) 2.00 mol NH3(e) vaporizes at -33.0 °C. AHvap = 23.35 kJ/mol. (b) 1.00 mol C,H,OH(s) melts at -114 °C. AHjus = 5.0 kJ/mol. 17.53 Use data from Appendix G to calculate the standard entropy change...
Predict whether the entropy change is positive or negative for each of the following reactions. Give reasons for your predictions. a. 2 KClO4(s) + 2 KClO3(s) + O2(g) b. H2O(g) → H20(1) c. 2 Na(s) + 2 H20(1) ► 2 NaOH(aq) + H2(g) d. N2(g) → 2 N(g)
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