Using the appropriate bond energies, calculate the heat of reaction AH for the following reaction: CI db CI CI-C-CI + H-H - C-C-CI + H-CI [+ CI H You can find a table of bond energies by using the Data button on the ALEKS toolbar. Round your answer to the nearest kJ/mol. Note: For clarity, all lone pairs have been omitted from the molecular structures. kJ mol
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.
![Using the appropriate bond energies, calculate the heat of reaction AĦ for the following reaction:
Omar bin V
CI
CI
do Data
CI-C- CI + H-H- CI-C-CI + H-CI
[+] Molal freezing point depression and boiling point elevation constants
For example, the Kf and K for water.
CI
H.
[-] Bond energies
You can find a table of bond energies by using the Data button on the ALEKS toolbar.
energy
energy
(k)/mol)
bond
(k)/mol)
energy
(kJ/mol)
Round your answer to the nearest k/mol.
bond
bond
Note: For clarity, all lone pairs have been omitted from the molecular structures.
H-H
436
O-H
497
F-F
159
H-F
570
O-F
215
F-a
261
H-CI
431
O-CI
234
F-Br
280
kJ
H-Br
366
O-Br
210
F-I
272
mol
H-I
298
0-1
213
C-a
243
H-C
413
O-C
385
Cl-Br
219
H-O
497
O=C
532
C-I
211
H-N
391
1077
Br-Br
194
H-P
351
0-0
210
Br-I
179
H-S
381
O=0
498
I-1
152
O-N
206
O=N
631
O=S
551
energy
(k/mol)
energy
(k)/mol)
bond
energy
(kJ/mol)
bond
bond
S-H
381
N-H
391
C-H
413
392
N-C
356
S-F
C-F
460
272
S-d
N=C
615
C-CI
350
S-Br
230
NEC
749
C-Br
293
JT Cr A6
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