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Question 8: Standard enthalpy of reactions can be calculated from standard enthalpies of formation of reactants. A. True B. False Question 9: Calculate AH rxn for the combustion reaction of CH, shown below given the following: AH of CH4(g) = -74.8 kJ/mol; AH of CO = -393.5 kJ/mol; AH of H,0, = 2(g) -285.5 kJ/mol. CH4 + 2 O2) --> CO2)+ 2 H,Oo 2(g) 4(g) 2(g) A.-604.2 kJ B.889.7 kJ C.-997.7 kJ D.-889.7 kJ E. None of the above

Question 8: Standard enthalpy of reactions can be calculated from standard enthalpies of formation of reactants. A. True B. False Question 9: Calculate AH rxn for the combustion reaction of CH, shown below given the following: AH of CH4(g) = -74.8 kJ/mol; AH of CO = -393.5 kJ/mol; AH of H,0, = 2(g) -285.5 kJ/mol. CH4 + 2 O2) --> CO2)+ 2 H,Oo 2(g) 4(g) 2(g) A.-604.2 kJ B.889.7 kJ C.-997.7 kJ D.-889.7 kJ E. None of the above

Chemistry & Chemical Reactivity
Chemistry & Chemical Reactivity
9th Edition
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter5: Principles Of Chemical Reactivity: Energy And Chemical Reactions
Section: Chapter Questions
Problem 64PS: The enthalpy change for the oxidation of styrene. C8H8, is measured by calorimetry. C8H8() + 10...
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Question 8: Standard enthalpy of reactions can be calculated from standard enthalpies of formation of reactants. Α. True B. False Question 9: Calculate AH° rxn for the combustion reaction of CH, shown below given the following: AH of CH4(g) = -74.8 kJ/mol; AH of CO2 = -393.5 kJ/mol; AH of H,O = -285.5 kJ/mol. CH2) + 2 O2() 2(g) 4(g) 2(g) ---> CO2) + 2 H,O A.-604.2 kJ B.889.7 kJ C.-997.7 kJ D.-889.7 kJ E. None of the above Question 10: Find the standard enthalpy of formation of ethylene, C,Hg)» given the following data: C,H+ 3 O --> 2 COe) + 2 H,0, AH° rxn = -1411 kJ; Co + O2e) H,O, AH of =-285.8 kJ 2(g) -> COe AH of = -393.5 kJ; He + ½0e) ----> 2(g) (), A.731 kJ B.2.77 x 10 kJ C.1.41 x 10° kJ D.87 kJ E.52 kJ
Transcribed Image Text:Question 8: Standard enthalpy of reactions can be calculated from standard enthalpies of formation of reactants. Α. True B. False Question 9: Calculate AH° rxn for the combustion reaction of CH, shown below given the following: AH of CH4(g) = -74.8 kJ/mol; AH of CO2 = -393.5 kJ/mol; AH of H,O = -285.5 kJ/mol. CH2) + 2 O2() 2(g) 4(g) 2(g) ---> CO2) + 2 H,O A.-604.2 kJ B.889.7 kJ C.-997.7 kJ D.-889.7 kJ E. None of the above Question 10: Find the standard enthalpy of formation of ethylene, C,Hg)» given the following data: C,H+ 3 O --> 2 COe) + 2 H,0, AH° rxn = -1411 kJ; Co + O2e) H,O, AH of =-285.8 kJ 2(g) -> COe AH of = -393.5 kJ; He + ½0e) ----> 2(g) (), A.731 kJ B.2.77 x 10 kJ C.1.41 x 10° kJ D.87 kJ E.52 kJ
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