Select Average Bond Dissociation Enthalpies (kJ/mol)Single BondsSiCIBr1.436413391463565328322347432366299C346305358485272339285213163201283192146452335218201201F155565490284253249278Si222293381310234201326184226255CI242216208Br193175151Multiple BondsN=N418C=C610N=N945C=C835C=N615C=O745C=N887C=O (in CO2)803O=0 (in O2)498C=O1046 Use the above bond energy table to calculate the enthalpy of the following reaction in kJ/mol.C2HA18) + 302(g) → 2CO23) + 2H2O(g)

The given chemical reaction is: C2H4g + 3O2g → 2CO2g + 2H2Og The enthalpy of a reaction can be…

Answered: Use the above bond energy table to…

Use the above bond energy table to calculate the enthalpy of the following reaction in kJ/mol. C2HA[8) + 302(g) →→ 2CO2(g) + 2H2O(g)

Chemistry by OpenStax (2015-05-04)

1st Edition

ISBN:9781938168390

Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser

Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser

Chapter8: Advanced Theories Of Covalent Bonding

Section: Chapter Questions

Problem 23E: The bond energy of a C—C single bond averages 347 kJ mol-1; that of a CC triple bond averages 839 kJ...

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Concept explainers

Thermochemistry

Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.

Exergonic Reaction

The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.

Question

Select Average Bond Dissociation Enthalpies (kJ/mol)
Single Bonds
Si
CI
Br
1.
436
413
391
463
565
328
322
347
432
366
299
C
346
305
358
485
272
339
285
213
163
201
283
192
146
452
335
218
201
201
F
155
565
490
284
253
249
278
Si
222
293
381
310
234
201
326
184
226
255
CI
242
216
208
Br
193
175
151
Multiple Bonds
N=N
418
C=C
610
N=N
945
C=C
835
C=N
615
C=O
745
C=N
887
C=O (in CO2)
803
O=0 (in O2)
498
C=O
1046

Use the above bond energy table to calculate the enthalpy of the following reaction in kJ/mol.
C2HA18) + 302(g) → 2CO23) + 2H2O(g)

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