Question 8: Standard enthalpy of reactions can becalculated from standard enthalpies of formation ofreactants.Α. TrueB. FalseQuestion 9: Calculate AH° rxn for the combustion reactionof 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,OA.-604.2 kJB.889.7 kJC.-997.7 kJD.-889.7 kJE. None of the aboveQuestion 10: Find the standard enthalpy of formation ofethylene, 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 kJ2(g)-> COe AH of = -393.5 kJ; He + ½0e) ---->2(g)(),A.731 kJB.2.77 x 10 kJC.1.41 x 10° kJD.87 kJE.52 kJ

Answered: Image /qna-images/answer/2385dc03-6615-444b-96a1-75da21efefc1.jpg

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

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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