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18 Question (3 points) What combinations of positive or negative AH and positive or negative AS...
What combinations of positive or negative ΔH and positive or negative ΔS can indicate a spontaneous...
What combinations of positive or negative ΔH and positive or negative ΔS can indicate a spontaneous reaction? Choose one or more:–ΔH, –ΔS+ΔH, –ΔS–ΔH, +ΔS+ΔH, +ΔS
need answer for the #4 02 Question (1 point) The following reaction has the following standard...
need answer for the #4
02 Question (1 point) The following reaction has the following standard thermodynamic parameters: AHºran --29.0 kJ/mol and AS --64.5J(molok) c(g) +D(g) →E(8) 4th attempt Part 1 (0.3 point) Il See Periodic Tat Is the reaction exothermic or endothermic? Choose one: Endothermic 25 OF 29 QUESTIONS COMPLETED < 02/29 > + VIEW SOLUTION Part 4 (0.3 point) Calculate the temperature at which the reaction bepymes nonspontaneous. 417 > 3rd attempt 2nd attempt 1st attempt 25 OF...
Consider a reaction that has a positive AH and a negative As. Which of the following...
Consider a reaction that has a positive AH and a negative As. Which of the following statements is TRUE? a. This reaction will be spontaneous only at high temperatures. b. This reaction will be spontaneous at all temperatures. c. This reaction will be nonspontaneous at all temperatures. d. This reaction will be nonspontaneous only at high temperatures. e. It is not possible to determine without more information.
20 Question (3 points) a See page 181 A method for determining the quantity of dissolved...
20 Question (3 points) a See page 181 A method for determining the quantity of dissolved oxygen in natural waters requires a series of redox reactions. Balancé the following chemical equations in that series under the conditions indicated 2nd attempt Part 1 (1 point) ll See Periodic Table See Hint In basic solution: Mn2+ (aq) +02(g) → MnO2(s) < 20/29 > 20 OF 29 QUESTIONS COMPLETED + VIEW SOLUTION , UBMIT 9 MacBook Pro
03 Question (5 points) See page 407 A pair of diastereomers is each individually mixed with a strong base, and for...
03 Question (5 points) See page 407 A pair of diastereomers is each individually mixed with a strong base, and for both an E2 reaction occurs Provide the missing curved arrow notation, and draw the correct geometric isomer that is formed for both of the E2 mechanisms 4th attempt Part 1 (2.5 points) l See Periodic Table See Hint Please draw all four bonds at chiral centers Draw ths missing curved arrow notation for the E2 reaction suMIT ANSWE VIEW...
mm 11/18/19 su 82% Calculate the Sºn of the following reaction at 217°C and standard pressure....
mm 11/18/19 su 82% Calculate the Sºn of the following reaction at 217°C and standard pressure. 3rd attempt Feedback See Periodic CH,(g) +302(8) 2002 (8) +24,0 (8) AH", kJ/mol 52.3 0 S", J/mol K 219.5 AG®, kJ/mol 68.1 205.0 0 C2H4(g) O2(8) CO2(g) H2O(g) -393.5 213.6 -394.4 -241.8 188.7 - 228.6 J/mol K 28 OF 29 QUESTIONS COMPLETED < 1729 > + VIEW SOLUTION
Question 13 Tries remaining 2 Points out of 1.00 P Flag question If the AH for...
Question 13 Tries remaining 2 Points out of 1.00 P Flag question If the AH for a given reaction is -14.9 kJ, and AS is -78.1 J/K, indicate whether the reaction is spontaneous (and the sign for AG) at the temperature listed. This question allows multiple attempts, however, 1/4 (25%) point will be deducted if an incorrect submission is submitted. T = 150K T298 K Choose Choose Check
6. (3 points) For each of the following reactions, predict the sign (positive or negative) for...
6. (3 points) For each of the following reactions, predict the sign (positive or negative) for the AS and AH values. Then determine when the reaction will be spontaneous (always, never, at high temperatures, or at low temperatures). a. CH4(g) + 202 (g) → CO2 (g) + 2H20 (g) b. 4H3PO4(s) - P010 (s) + 6H20 (1) c. HCI (g) + NH3(g) → NH4Cl (s)
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...
Chapter 16: Homework Question 12 Flag question Points out of 1.00 Tries remaining 2 If the AH for a given reaction...
Chapter 16: Homework Question 12 Flag question Points out of 1.00 Tries remaining 2 If the AH for a given reaction is endothermic, and AS is decreasing, indicate whether the reaction is spontaneous (and the sign for AG) at the termperature listed. This question allows multiple attempts, however, 1/4 (25%) point will be deducted if an incorrect submission is submitted T-10 K Choose Choose T 298 K Check
need answer for the #4
02 Question (1 point) The following reaction has the following standard thermodynamic parameters: AHºran --29.0 kJ/mol and AS --64.5J(molok) c(g) +D(g) →E(8) 4th attempt Part 1 (0.3 point) Il See Periodic Tat Is the reaction exothermic or endothermic? Choose one: Endothermic 25 OF 29 QUESTIONS COMPLETED < 02/29 > + VIEW SOLUTION Part 4 (0.3 point) Calculate the temperature at which the reaction bepymes nonspontaneous. 417 > 3rd attempt 2nd attempt 1st attempt 25 OF...
Consider a reaction that has a positive AH and a negative As. Which of the following statements is TRUE? a. This reaction will be spontaneous only at high temperatures. b. This reaction will be spontaneous at all temperatures. c. This reaction will be nonspontaneous at all temperatures. d. This reaction will be nonspontaneous only at high temperatures. e. It is not possible to determine without more information.
20 Question (3 points) a See page 181 A method for determining the quantity of dissolved oxygen in natural waters requires a series of redox reactions. Balancé the following chemical equations in that series under the conditions indicated 2nd attempt Part 1 (1 point) ll See Periodic Table See Hint In basic solution: Mn2+ (aq) +02(g) → MnO2(s) < 20/29 > 20 OF 29 QUESTIONS COMPLETED + VIEW SOLUTION , UBMIT 9 MacBook Pro
03 Question (5 points) See page 407 A pair of diastereomers is each individually mixed with a strong base, and for both an E2 reaction occurs Provide the missing curved arrow notation, and draw the correct geometric isomer that is formed for both of the E2 mechanisms 4th attempt Part 1 (2.5 points) l See Periodic Table See Hint Please draw all four bonds at chiral centers Draw ths missing curved arrow notation for the E2 reaction suMIT ANSWE VIEW...
mm 11/18/19 su 82% Calculate the Sºn of the following reaction at 217°C and standard pressure. 3rd attempt Feedback See Periodic CH,(g) +302(8) 2002 (8) +24,0 (8) AH", kJ/mol 52.3 0 S", J/mol K 219.5 AG®, kJ/mol 68.1 205.0 0 C2H4(g) O2(8) CO2(g) H2O(g) -393.5 213.6 -394.4 -241.8 188.7 - 228.6 J/mol K 28 OF 29 QUESTIONS COMPLETED < 1729 > + VIEW SOLUTION
Question 13 Tries remaining 2 Points out of 1.00 P Flag question If the AH for a given reaction is -14.9 kJ, and AS is -78.1 J/K, indicate whether the reaction is spontaneous (and the sign for AG) at the temperature listed. This question allows multiple attempts, however, 1/4 (25%) point will be deducted if an incorrect submission is submitted. T = 150K T298 K Choose Choose Check
6. (3 points) For each of the following reactions, predict the sign (positive or negative) for the AS and AH values. Then determine when the reaction will be spontaneous (always, never, at high temperatures, or at low temperatures). a. CH4(g) + 202 (g) → CO2 (g) + 2H20 (g) b. 4H3PO4(s) - P010 (s) + 6H20 (1) c. HCI (g) + NH3(g) → NH4Cl (s)
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...
Chapter 16: Homework Question 12 Flag question Points out of 1.00 Tries remaining 2 If the AH for a given reaction is endothermic, and AS is decreasing, indicate whether the reaction is spontaneous (and the sign for AG) at the termperature listed. This question allows multiple attempts, however, 1/4 (25%) point will be deducted if an incorrect submission is submitted T-10 K Choose Choose T 298 K Check
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