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05 Question (2 points) a See page 404 Use the average bond energies in the text...
05 Question (2points) e See page 404 Use the average bond energies in the text to...
05 Question (2points) e See page 404 Use the average bond energies in the text to estimate the enthalpy changes of the following reactions. 2nd attempt Part 1 (1 point) See Periodíc Table See Hint N, (g) + O2 (g) ? 2NO (g) 229 kJ/mol Part 2 (1 point) C(s) + CO2(g) ? 2CO(g) Note: The heat of sublimation of graphite, C(s), is 719 kJ/mol. 69
15 Question (3 points) e See page 648 In a study of the formation of NOx...
15 Question (3 points) e See page 648 In a study of the formation of NOx air pollution, a chamber heated to 2200°C was filled with air (.790 atm N2, 0.2 10 atm O2). What are the equilibrium partial pressures of N2, O2, and NO if Kp = 0.0520 for the following reaction: N2(8)+02(g) 2NO (g) 1st attempt See Periodic Table Part 1 (1 point) See Hint P(N2) = atm Part 2 (1 point) P(O2) atm See Hint Part 3...
19 Question (1point) e See page 658 Automobiles and trucks pollute the air with NO. At...
19 Question (1point) e See page 658 Automobiles and trucks pollute the air with NO. At 2000.0°C, Kc for the reaction 2NO (g) N2 ()+02(g) At 2000.0°C Kc= 4.100 x 10-4and AH° = 180.6 kJ. 3rd attempt See Periodic Table See Hint What is the value of Kc at 63.00°C? x 10-8 2.337
11 Question (3 points) See page 247 Copper has been used for thousands of years, either...
11 Question (3 points) See page 247 Copper has been used for thousands of years, either as a pure metal or in alloys. It is frequently used today in the production of wires and cables. Copper can be obtained through smelting or recycling. Determine the energy associated with each of these processes in order to recycle 145 mol Cu The smelting of copper occurs by the balanced chemical equation: Cuo(4) + CO(g) – Cu(s) + CO,(g) where AH cuois -155...
8. Using the table of bond energies in your textbook, calculate the change in energy for...
8. Using the table of bond energies in your textbook, calculate the change in energy for the given reaction. Label each as either exothermic or endothermic a. C2Ho (g) 02(g)>CO2(g) +H20 (g) b. H2 (g) 02(g) H202 (g) c. 2 BrCl (g) -> Br2 (g) + Cl2 (g) d. 3 H2 (g) +N2 (g) -> 2 NHs (g)
19 Question (1 point) See page 658 Automobiles and trucks pollute the air with NO. At...
19 Question (1 point) See page 658 Automobiles and trucks pollute the air with NO. At 2000.0°C, K, for the reaction N2(g) + O2(g) + 2NO(g) At 2000.0°C Ke = 4.100 x 10-4and AH° = 180.6 kJ. 1st attempt See Periodic Table See Hint What is the value of Kcat 63.00°C?
14 Question e See page 585 (1 point) 1st attempt See Periodic Table See Hint -5 -1 The rate constant for the reaction b...
14 Question e See page 585 (1 point) 1st attempt See Periodic Table See Hint -5 -1 The rate constant for the reaction below was determined to be 3.241x10 s a 225 kJ/mol. What wou Id be the value of the rate constant at 9.40x10 K? N20(g) > N2 (8) +O (g) 800 K. The activation energy of the reaction is -1
14 Question e See page 585 (1 point) 1st attempt See Periodic Table See Hint -5 -1 The...
19 Question (1 point) e See page 658 Automobiles and trucks pollute the air with NO....
19 Question (1 point) e See page 658 Automobiles and trucks pollute the air with NO. At 2000.0°C, Kc for the reaction N2(g) + O2(g) + 2NO(g) At 2000.0°C Kc = 4.100 x 10-4 and AH° = 180.6 kJ. V 1st attempt . See Periodic Table D See Hint What is the value of Kc at 51.00°C?
See pa 05 Question (1 point) A battery can provide a current of 1.60 A at...
See pa 05 Question (1 point) A battery can provide a current of 1.60 A at 3.00 V for 5.00 hr. How much energy (in kJ) is produced? 2nd attempt hal See Periodic Table OS Energy- 25.11 1st attempt 06 Question (1 point) In the electrolysis of water, how long will it take to produce 1.000 x 102 L of H2 at STP (273K and 1.00 bar) using an electrolytic cell through which a current of 56.00 mA flows? 3rd...
17% 02/27/18 1 Question ( point) a See page 154 Most rum sold in liquor stores...
17% 02/27/18 1 Question ( point) a See page 154 Most rum sold in liquor stores is about 30.0-40.0% ethanol, C2H5OH, by volume. However, overproof rum, which is used to prepare flaming drinks might contain anywhere between 60.0 95.0% alcohol by volume. A t 200°C the densities of ethanol and water are 0789 g/mL and 0.998 g/mL, respectively. 1st attempt 63 Part 1 (0.3 point) Feedback hl See Periodic Table See Hint Calculate the number of moles of ethanol in...
05 Question (2points) e See page 404 Use the average bond energies in the text to estimate the enthalpy changes of the following reactions. 2nd attempt Part 1 (1 point) See Periodíc Table See Hint N, (g) + O2 (g) ? 2NO (g) 229 kJ/mol Part 2 (1 point) C(s) + CO2(g) ? 2CO(g) Note: The heat of sublimation of graphite, C(s), is 719 kJ/mol. 69
15 Question (3 points) e See page 648 In a study of the formation of NOx air pollution, a chamber heated to 2200°C was filled with air (.790 atm N2, 0.2 10 atm O2). What are the equilibrium partial pressures of N2, O2, and NO if Kp = 0.0520 for the following reaction: N2(8)+02(g) 2NO (g) 1st attempt See Periodic Table Part 1 (1 point) See Hint P(N2) = atm Part 2 (1 point) P(O2) atm See Hint Part 3...
19 Question (1point) e See page 658 Automobiles and trucks pollute the air with NO. At 2000.0°C, Kc for the reaction 2NO (g) N2 ()+02(g) At 2000.0°C Kc= 4.100 x 10-4and AH° = 180.6 kJ. 3rd attempt See Periodic Table See Hint What is the value of Kc at 63.00°C? x 10-8 2.337
11 Question (3 points) See page 247 Copper has been used for thousands of years, either as a pure metal or in alloys. It is frequently used today in the production of wires and cables. Copper can be obtained through smelting or recycling. Determine the energy associated with each of these processes in order to recycle 145 mol Cu The smelting of copper occurs by the balanced chemical equation: Cuo(4) + CO(g) – Cu(s) + CO,(g) where AH cuois -155...
8. Using the table of bond energies in your textbook, calculate the change in energy for the given reaction. Label each as either exothermic or endothermic a. C2Ho (g) 02(g)>CO2(g) +H20 (g) b. H2 (g) 02(g) H202 (g) c. 2 BrCl (g) -> Br2 (g) + Cl2 (g) d. 3 H2 (g) +N2 (g) -> 2 NHs (g)
19 Question (1 point) See page 658 Automobiles and trucks pollute the air with NO. At 2000.0°C, K, for the reaction N2(g) + O2(g) + 2NO(g) At 2000.0°C Ke = 4.100 x 10-4and AH° = 180.6 kJ. 1st attempt See Periodic Table See Hint What is the value of Kcat 63.00°C?
14 Question e See page 585 (1 point) 1st attempt See Periodic Table See Hint -5 -1 The rate constant for the reaction below was determined to be 3.241x10 s a 225 kJ/mol. What wou Id be the value of the rate constant at 9.40x10 K? N20(g) > N2 (8) +O (g) 800 K. The activation energy of the reaction is -1
14 Question e See page 585 (1 point) 1st attempt See Periodic Table See Hint -5 -1 The...
19 Question (1 point) e See page 658 Automobiles and trucks pollute the air with NO. At 2000.0°C, Kc for the reaction N2(g) + O2(g) + 2NO(g) At 2000.0°C Kc = 4.100 x 10-4 and AH° = 180.6 kJ. V 1st attempt . See Periodic Table D See Hint What is the value of Kc at 51.00°C?
See pa 05 Question (1 point) A battery can provide a current of 1.60 A at 3.00 V for 5.00 hr. How much energy (in kJ) is produced? 2nd attempt hal See Periodic Table OS Energy- 25.11 1st attempt 06 Question (1 point) In the electrolysis of water, how long will it take to produce 1.000 x 102 L of H2 at STP (273K and 1.00 bar) using an electrolytic cell through which a current of 56.00 mA flows? 3rd...
17% 02/27/18 1 Question ( point) a See page 154 Most rum sold in liquor stores is about 30.0-40.0% ethanol, C2H5OH, by volume. However, overproof rum, which is used to prepare flaming drinks might contain anywhere between 60.0 95.0% alcohol by volume. A t 200°C the densities of ethanol and water are 0789 g/mL and 0.998 g/mL, respectively. 1st attempt 63 Part 1 (0.3 point) Feedback hl See Periodic Table See Hint Calculate the number of moles of ethanol in...
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