Part B Use bond energies to estimate the enthalpy change for Equilibrium 1. Express your answer numerically in kilojoules. • View Available Hint(s) ? AHrxn = 348 kJ Submit Previous Answers X Incorrect; Try Again; 5 attempts remaining Your answer is the energy change associated with breaking a carbon-carbon single bond. There are several bonds broken and formed in Equilibrium 1 that you must account for. Part C Use bond energies to estimate the enthalpy change, AHrxn, for Equilibrium 2. Express your answer numerically in kilojoules. • View Available Hint(s) AHrxn = kJ Submit
Part B Use bond energies to estimate the enthalpy change for Equilibrium 1. Express your answer numerically in kilojoules. • View Available Hint(s) ? AHrxn = 348 kJ Submit Previous Answers X Incorrect; Try Again; 5 attempts remaining Your answer is the energy change associated with breaking a carbon-carbon single bond. There are several bonds broken and formed in Equilibrium 1 that you must account for. Part C Use bond energies to estimate the enthalpy change, AHrxn, for Equilibrium 2. Express your answer numerically in kilojoules. • View Available Hint(s) AHrxn = kJ Submit
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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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
parts b and c please
Transcribed Image Text:Polyvinyl chloride (PVC) is one of the most commercially important polymers. PVC
is made by addition polymerization of vinyl chloride (C2H3 Cl). Vinyl chloride is
synthesized from ethylene (C2 H4) in a two-step process involving the following
equilibria:
Selected bond dissociation enthalpies are given in
this table.
Dissociation enthalpy
Bond
Equilibrium 1: C2H4(g) + Cl2 (g) = C2H¾C12 (g)
Equilibrium 2: C2H4 Cl2 (g) = C2H3 Cl(g) + HC1(g)
(kJ/mol)
C-C
348
C=C
614
C=C
839
Part A
C-C1
328
C-H
413
What are the C-C bond orders in C2H4C12 and C2H3 Cl, respectively?
Cl-Cl
242
Express your answers numerically separated by commas.
Н-Н
436
• View Available Hint(s)
Н-СІ
431
Transcribed Image Text:Part B
Use bond energies to estimate the enthalpy change for Equilibrium 1.
Express your answer numerically in kilojoules.
• View Available Hint(s)
?
ΔΗΧ
348
kJ
Submit
Previous Answers
X Incorrect; Try Again; 5 attempts remaining
Your answer is the energy change associated with breaking a carbon-carbon single bond. There are several bonds broken and formed in Equilibrium 1 that you
must account for.
Part C
Use bond energies to estimate the enthalpy change, AHrxn, for Equilibrium 2.
Express your answer numerically in kilojoules.
• View Available Hint(s)
AHrxn
kJ
Submit
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