(c) Consider the following chemical reaction: C3H8(g) + H2(g) - C2H6(g) + CH4(g) AH° = ? Calculate the enthalpy change for the reaction above using Hess's law. Thermochemical data: H2(g) + ½O2(g) H2O(1) AH° =-285.8 kJ AH°combustion for CH4(g) AH° = -890.0 kJ/mol CO2(g) C(s, graphite) + O2(8) AH° = +393.5 kJ %3D AH°combustion for C2H6(g) AH° =-1560.0 kJ/mol AH°, for C3H8(g) AH° =-103.8 kJ/mol

(c) Consider the following chemical reaction: C3H8(g) + H2(g) - C2H6(g) + CH4(g) AH° = ? Calculate the enthalpy change for the reaction above using Hess's law. Thermochemical data: H2(g) + ½O2(g) H2O(1) AH° =-285.8 kJ AH°combustion for CH4(g) AH° = -890.0 kJ/mol CO2(g) C(s, graphite) + O2(8) AH° = +393.5 kJ %3D AH°combustion for C2H6(g) AH° =-1560.0 kJ/mol AH°, for C3H8(g) AH° =-103.8 kJ/mol

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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In the recovery of iron from iron ore, the reduction of the ore is actually accomplished by reactions involving carbon monoxide. Use the following thermochemical equations, Fe,O3(s) + 3CO(g) 2Fe(s) + 3CO,(g) AH° = - 28 kJ 3Fc,O3() + CO(g) 2Fe3O4() + CO,(g) AH = -59 kJ FezO4(s) + CO(g) 3FcO(s) + CO,(g) AH° = +38 kJ to calculate AH° for the reaction FeO() + CO(g) Fe(s) + CO2(g) AH° = i kJ
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Given the following two reactions:(1)Fe(s) + Cl2(g)->FeCl2(s) H(1) = -341.8 kJ(2)Hg(l) + Cl2(g)->HgCl2(s) H(2) = -224.3 kJcalculate the enthalpy change for the following reaction:(3) FeCl2(s) + Hg(l)-> Fe(s) + HgCl2(s) H(3) = kJ
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