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Calculate the ?H (in kcal/mol) for the reactions (use table on the picture) a) H2 + O2 → 2 H2O

Calculate the ?H (in kcal/mol) for the reactions (use table on the picture) a) H2 + O2 → 2 H2O

Chemistry
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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Calculate the ?H (in kcal/mol) for the reactions (use table on the picture)

a) H2 + O2 → 2 H2O

b) CH4 + 2 O2 → CO2 + 2 H2O

c) 6 CO2 + 6 H2O → C6H16O6 + 6 O2

Table 7.1 Average Bond Dissociation Energies Bond Dissociation Bond Dissociation Bond Dissociation Energy kcal/mol (kJ/mol) Energy kcal/mol (kJ/mol) Energy Bond Bond Bond kcal/mol (kJ/mol) C-H 99 (413) N-H 93 (391) C=C 147 (614) C C 83 (347) N-N 38 (160) C=C 201 (839) C-N 73 (305) N-CI 48 (200) C=0* 178 (745) C-0 86 (358) N-0 48 (201) 119 (498) 0=0 C- CI 81 (339) H-H 103 (432) N=0 145 (607) CI-CI 58 (243) 0-H 112 (467) 0=N 213 (891) H-CI 102 (427) 0-CI 49 (203) N=N 226 (946) *The C=0 bond dissociation energies in CO2 are 191 kcal/mol (799 kJ/mol).
Transcribed Image Text:Table 7.1 Average Bond Dissociation Energies Bond Dissociation Bond Dissociation Bond Dissociation Energy kcal/mol (kJ/mol) Energy kcal/mol (kJ/mol) Energy Bond Bond Bond kcal/mol (kJ/mol) C-H 99 (413) N-H 93 (391) C=C 147 (614) C C 83 (347) N-N 38 (160) C=C 201 (839) C-N 73 (305) N-CI 48 (200) C=0* 178 (745) C-0 86 (358) N-0 48 (201) 119 (498) 0=0 C- CI 81 (339) H-H 103 (432) N=0 145 (607) CI-CI 58 (243) 0-H 112 (467) 0=N 213 (891) H-CI 102 (427) 0-CI 49 (203) N=N 226 (946) *The C=0 bond dissociation energies in CO2 are 191 kcal/mol (799 kJ/mol).
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