Homework Answers
∆Hrxn = total heat of formation of products - total heat of formation of reactants.
∆Hrxn = -1322.9 kJ
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03 Question (1 point) Estimate the Hºrn of the following reaction at 221°C and standard pressure....
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
Calculate the ASn of the following reaction at 217°C and standard pressure. 1st attempt lui See Periodic Table C2H,...
Calculate the ASn of the following reaction at 217°C and standard pressure. 1st attempt lui See Periodic Table C2H,(8) +302(8) ► 2009 (8) + 2H,0(3) S",J/molek 219.5 AG®, l/mol 68.1 AH", IJ/mol CaHa(g) 52.3 O2(e) 10 CO2(8) -393.5 H2O(s) -241.8 205.0 213.6 -3944 188.7 228.6 J/mol. 14 OF 29 QUESTIONS COMPLETED < 17,29 >
23. Question (1 point) W Calculate the free-energy change of the following reaction at 221°C: C2H(g)...
23. Question (1 point) W Calculate the free-energy change of the following reaction at 221°C: C2H(g) +302(g) → 2002(g) + 2H20(g) A Hºt, kJ/mol 52.3 Sº, J/mol K 219.5 C2H4(g) O₂(g) CO2(g) H2O(g) -393.5 205.0 213.6 188.7 -241.8 1st attempt
please explain step by step. 1. Using the data in Study Sheet No. 34, calculate the...
please explain step by step.
1. Using the data in Study Sheet No. 34, calculate the following for the combus- tion of 1.00 mole of C H (1) at 25°C. AH, C H (1) = 49.04 kJ/mol. a) The heat flow at a constant pressure of 1.00 atm. b) The heat flow at constant volume. c) The work at a constant pressure of 1.00 atm. d) The work at a constant volume. bordo APPENDIXO-GENERAL CHEMISTRY STUDY SHEETS GENERAL CHEMISTRY STUDY...
Consider the reaction 2 CO2(g) +5 H2(e) C H2(e) + 4H2O(g) Using the standard thermodynamic data...
Consider the reaction 2 CO2(g) +5 H2(e) C H2(e) + 4H2O(g) Using the standard thermodynamic data in the tables linked above, calculate the equilibrium constant for this reaction at 298.15K ANSWER: Submit Answer Retry Entire Group more group attempts remaining AH,(kJ/mol) AG® (kJ/mol) Sº (J/mol K) -238.7 -116.0 126.8 219.0 -363.0 249.0 135.1 -166.3 -110.0 -351.0 125.0 209.2 68.2 - 129.0 202.0 226.7 200.9 52.3 - 166.0 -53.0 -277.7 219.6 250.0 242.0 160.7 -13.0 -235.1 282.7 Carbon CH3OH (1) H2CO...
Consider the following reaction. CH,(8) + 30,(8) 200,(g) + 2 H2O(g) Compound C, H.() 0,(g) CO2(g)...
Consider the following reaction. CH,(8) + 30,(8) 200,(g) + 2 H2O(g) Compound C, H.() 0,(g) CO2(g) H2O(g) AH; (kJ/mol) 52.4 0 -393.5 -241.8 What is the AH of the reaction? -687.7 kJ/mol -1323.0 kJ/mol -1218.2 kJ/mol 1323.0 kJ/mol
20. What is the standard enthalpy change for the following reaction? 3CH.(g) + 40,(g) - 3C02(g) + 6H2O(g) AH® (kJ/m...
20. What is the standard enthalpy change for the following reaction? 3CH.(g) + 40,(g) - 3C02(g) + 6H2O(g) AH® (kJ/mol) CHig) - 74.87 03(g) +142.7 CO2(g) --393.5 H2O(g) -241.8 a. -2285.1 kJ b.-2977.5 kJ c. +2977.5 kJ d. +2285.1 kJ e. -3426.5 kJ
Practice with Hess's Law and Standard Heats of Formation 1. (Example) The reaction C He(g) +...
Practice with Hess's Law and Standard Heats of Formation 1. (Example) The reaction C He(g) + 6 F2 (g) → 2 CF4(g) + 4 HF (9) can be written as the sum of: CH4 (9) ► 2 C(s) + 2 Ha(o) AH = -52.3 kJ/mol 2 C(s) + 4 Faq) → 2 CF4g) SH -1380 kJ/mol 2 Haq) + 2 Fala) > 4 HF HE.1074 kJimol CsHe(g) + 6 F2 (g) → 2 CF.(g) + 4 HF (g) AH =...
Question 3 Propane (C3Hg) undergoes combustion according to the following thermochemical equation: C3H8(g) + 5 O2(g)...
Question 3 Propane (C3Hg) undergoes combustion according to the following thermochemical equation: C3H8(g) + 5 O2(g) - 3 CO2(g) + 4H2O(g) AHrxn=-2043.0 kJ Substance Heat of Formation (kJ/mol) CO2(g) -393.5 H2O(g) -241.8 O2(g) 0 C3H8(g) ? Calculate the standard enthalpy of formation of propane C3Hg a. -104.7 kJ/mol O b. +1407.7 kJ/mol O C. -1407.7 kJ/mol O d. +104.7 kJ/mol o e. -4190.7 kJ/mol uestion 4 Consider the evaporation of liquid water to water vapor at 125°C. What is true...
Need some assistance with the following question: Thanks! 3. A reaction that occurs in the internal...
Need some assistance with the following question:
Thanks!
3. A reaction that occurs in the internal combustion engine is N2(g)O2(g)2 NO(g) (a) Determine ΔΗ0nn and Sonn for the reaction at 298K. (b) Assuming that these values are relatively independent of temperature (probably not a good assumption over such a large temperature range, but we'll pretend), calculate Gonn at 100°C, 3540°C, and 8000°C. (c) At what temperature would this reaction become spontaneous? Relevant Thermodynamic Data at 25 C AH, (kJ /mol)...
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
Calculate the ASn of the following reaction at 217°C and standard pressure. 1st attempt lui See Periodic Table C2H,(8) +302(8) ► 2009 (8) + 2H,0(3) S",J/molek 219.5 AG®, l/mol 68.1 AH", IJ/mol CaHa(g) 52.3 O2(e) 10 CO2(8) -393.5 H2O(s) -241.8 205.0 213.6 -3944 188.7 228.6 J/mol. 14 OF 29 QUESTIONS COMPLETED < 17,29 >
23. Question (1 point) W Calculate the free-energy change of the following reaction at 221°C: C2H(g) +302(g) → 2002(g) + 2H20(g) A Hºt, kJ/mol 52.3 Sº, J/mol K 219.5 C2H4(g) O₂(g) CO2(g) H2O(g) -393.5 205.0 213.6 188.7 -241.8 1st attempt
please explain step by step.
1. Using the data in Study Sheet No. 34, calculate the following for the combus- tion of 1.00 mole of C H (1) at 25°C. AH, C H (1) = 49.04 kJ/mol. a) The heat flow at a constant pressure of 1.00 atm. b) The heat flow at constant volume. c) The work at a constant pressure of 1.00 atm. d) The work at a constant volume. bordo APPENDIXO-GENERAL CHEMISTRY STUDY SHEETS GENERAL CHEMISTRY STUDY...
Consider the reaction 2 CO2(g) +5 H2(e) C H2(e) + 4H2O(g) Using the standard thermodynamic data in the tables linked above, calculate the equilibrium constant for this reaction at 298.15K ANSWER: Submit Answer Retry Entire Group more group attempts remaining AH,(kJ/mol) AG® (kJ/mol) Sº (J/mol K) -238.7 -116.0 126.8 219.0 -363.0 249.0 135.1 -166.3 -110.0 -351.0 125.0 209.2 68.2 - 129.0 202.0 226.7 200.9 52.3 - 166.0 -53.0 -277.7 219.6 250.0 242.0 160.7 -13.0 -235.1 282.7 Carbon CH3OH (1) H2CO...
Consider the following reaction. CH,(8) + 30,(8) 200,(g) + 2 H2O(g) Compound C, H.() 0,(g) CO2(g) H2O(g) AH; (kJ/mol) 52.4 0 -393.5 -241.8 What is the AH of the reaction? -687.7 kJ/mol -1323.0 kJ/mol -1218.2 kJ/mol 1323.0 kJ/mol
20. What is the standard enthalpy change for the following reaction? 3CH.(g) + 40,(g) - 3C02(g) + 6H2O(g) AH® (kJ/mol) CHig) - 74.87 03(g) +142.7 CO2(g) --393.5 H2O(g) -241.8 a. -2285.1 kJ b.-2977.5 kJ c. +2977.5 kJ d. +2285.1 kJ e. -3426.5 kJ
Practice with Hess's Law and Standard Heats of Formation 1. (Example) The reaction C He(g) + 6 F2 (g) → 2 CF4(g) + 4 HF (9) can be written as the sum of: CH4 (9) ► 2 C(s) + 2 Ha(o) AH = -52.3 kJ/mol 2 C(s) + 4 Faq) → 2 CF4g) SH -1380 kJ/mol 2 Haq) + 2 Fala) > 4 HF HE.1074 kJimol CsHe(g) + 6 F2 (g) → 2 CF.(g) + 4 HF (g) AH =...
Question 3 Propane (C3Hg) undergoes combustion according to the following thermochemical equation: C3H8(g) + 5 O2(g) - 3 CO2(g) + 4H2O(g) AHrxn=-2043.0 kJ Substance Heat of Formation (kJ/mol) CO2(g) -393.5 H2O(g) -241.8 O2(g) 0 C3H8(g) ? Calculate the standard enthalpy of formation of propane C3Hg a. -104.7 kJ/mol O b. +1407.7 kJ/mol O C. -1407.7 kJ/mol O d. +104.7 kJ/mol o e. -4190.7 kJ/mol uestion 4 Consider the evaporation of liquid water to water vapor at 125°C. What is true...
Need some assistance with the following question:
Thanks!
3. A reaction that occurs in the internal combustion engine is N2(g)O2(g)2 NO(g) (a) Determine ΔΗ0nn and Sonn for the reaction at 298K. (b) Assuming that these values are relatively independent of temperature (probably not a good assumption over such a large temperature range, but we'll pretend), calculate Gonn at 100°C, 3540°C, and 8000°C. (c) At what temperature would this reaction become spontaneous? Relevant Thermodynamic Data at 25 C AH, (kJ /mol)...
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