Calculate the enthalpy of each propagation step and the total
enthalpy of reaction for the following transformation. A table of
bond dissociation energies is provided for reference.
Do not include units in your answer. For example, if the answer is
positive one hundred kilojoules per mole, write "+100" only.
∆HP1 =
∆HP2 =
∆HP =
Homework Answers
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Calculate the enthalpy of each propagation step and the total enthalpy of reaction for the follow...
Calculate the enthalpy for the reaction below using the following bond dissociation energies. • H-H 436...
Calculate the enthalpy for the reaction below using the following bond dissociation energies. • H-H 436 kJ/mol O-H 460 kJ/mol 0-0 180 kJ/mol • 0=0 498 kJ/mol H -774 kJ/mol -654 kJ/mol 654 kJ/mol 774 kJ/mol
Write equations for the chain propagation steps for the following reaction CH4 Br2CH3Br + HBr 2B. Use the bond dissociation enthalpy data in the given table to calculate ΔΗ"for...
Write equations for the chain propagation steps for the following reaction CH4 Br2CH3Br + HBr 2B. Use the bond dissociation enthalpy data in the given table to calculate ΔΗ"for the reaction of methane with a bromine atom (radical). KJ/mol 439 CH3-H 193 Br-Br H-Br 366 The activation energy for this reaction is 76 kJ/mol. Sketch a potential energy diagram for it, labeling reactants, product, and the transition state. 2D. Draw the structure of the transition state Does the transition state...
Use bond energies to estimate the enthalpy of formation of HBr(g). BE(H–H) = 436 kJ/mol BE(Br–Br)...
Use bond energies to estimate the enthalpy of formation of HBr(g). BE(H–H) = 436 kJ/mol BE(Br–Br) = 192 kJ/mol BE(H–Br) = 366 kJ/mol A –52 kJ/mol B +262 kJ/mol C +104 kJ/mol D +52 kJ/mol E –104 kJ/mol
1. Bond Dissociation Energies and Free Radicals Bond Bond Dissociation Energies (kJ/mol) Bond BDE Bond BDE...
1. Bond Dissociation Energies and Free Radicals Bond Bond Dissociation Energies (kJ/mol) Bond BDE Bond BDE (kJ/mol) (kJ/mol) H-H 436 CH3-H 439 H-F 570 CH3CH2-H 432 H-CI 432 (CH3CH2 413 BDE Bond (kJ/mol) 10-N 350 0-0 180 F-F O-H 0-C O-F 460 BDE (kJ/mol) | 200 180 159 | H-Br H-I 366 298 404 350 O-C1200 O-Br (CH3)3C-H C-C (sigma) C=C(pi) 210 C1-C1243 Br-Br 193 243 0 -I 220 I-I | 151 A. The enzyme methane monooxygenase catalyzes a remarkably...
1. For the following substitution reaction, please (a) calculate the AHran. (b) is this reaction an exothermic or e...
1. For the following substitution reaction, please (a) calculate the AHran. (b) is this reaction an exothermic or endothermic process? (5 pts) CHE CH3 H-C-Br + H-O-H + H-Br CHE н-с-он сн. Bond dissociation energies (CH3)2CH-Br 285 kJ/mol (CH),CH-OH 401 kJ/mol H-OH 498 kJ/mol H-Br 368 kJ/mol
Ch 9 Q 39 Which is expected to have the largest carbom-oxygen bond dissociation energy? -HCOOH...
Ch
9 Q 39
Which is expected to have the largest carbom-oxygen bond
dissociation energy?
-HCOOH
-H2CO3
-CO2
-CO
9.106
Use the bond dissociation energies from the table provided to
calculate an approximate standard enthalpy in kilojoules for the
reaction of ethylene with hydrogen to yield ethane
Problem 9.106 Average Bond Dissociation Energies, D /mol) H-H 136 C-H410N - 390 0 F 1801-11 H-C 410 C-C 350 N-C 300 0-d 200 S-F 310 H-F 570 C-F 450 N-F 270 o-Br210...
7. Calculate the AHRxn for the following transformation. A table of bond dissociation energies is provided...
7. Calculate the AHRxn for the following transformation. A table of bond dissociation energies is provided below. All work must be shown for partial credit. (8 pts.) hv Br + Br-Br + HBr: Table of Selected Homolytic Bond Dissociation Energies. Bond Broken (CH3)3C-H (CH3)2CH-H Br-Br H-Br CH3CH2-H (CH3)3C-Br (CH3)2CH-Br CH3CH2-Br kJ/mol 400 413 193 366 421 292 298 295
Question 6 0.5 pts The table below contains the bond dissociation energies for common bonds. 410...
Question 6 0.5 pts The table below contains the bond dissociation energies for common bonds. 410 Dissociation energy Bond (kJ/mol) |C-c 350 CNC 611 C-H 350 (c=0 799 0-0 180 O=O 498 460 C-O H-o Calculate the bond dissociation energy required for breaking all the bonds in a mole of water molecules, H20. Express your answer numerically, in terms of kJ/mol, and to three significant figures.
Calculate the enthalpy of the reaction below using the given bond energies. Cl2 + Br2 →...
Calculate the enthalpy of the reaction below using the given bond energies. Cl2 + Br2 → 2 BrCI Bond Energy (kJ/mol) CI-CI 242 Br-Br 193 Br-CI 218 0 -267 kj 217 kJ 0-1 kj 653 kJ
What is the enthalpy change for the reaction shown below? C2H2 + HCl -> CH2CHCl a. -34 kJ/mole...
What is the enthalpy change for the reaction shown below?
C2H2 + HCl -> CH2CHCl
a. -34 kJ/mole
b. -87 kJ/mole
c. +34 kJ/mole
d. +87 kJ/mole
Bond Dissociation Energies Average Single Bond Energies (kJ per mole) H 436414 389 464 569 293 318 339 431 368 297 347 293 351 439 289 264 259 330 276 238 159 201 272 201 243 138 184 368 351 201 159 540 490 285 255 197 176 213 226 360 289 Si...
Calculate the enthalpy for the reaction below using the following bond dissociation energies. • H-H 436 kJ/mol O-H 460 kJ/mol 0-0 180 kJ/mol • 0=0 498 kJ/mol H -774 kJ/mol -654 kJ/mol 654 kJ/mol 774 kJ/mol
Write equations for the chain propagation steps for the following reaction CH4 Br2CH3Br + HBr 2B. Use the bond dissociation enthalpy data in the given table to calculate ΔΗ"for the reaction of methane with a bromine atom (radical). KJ/mol 439 CH3-H 193 Br-Br H-Br 366 The activation energy for this reaction is 76 kJ/mol. Sketch a potential energy diagram for it, labeling reactants, product, and the transition state. 2D. Draw the structure of the transition state Does the transition state...
1. Bond Dissociation Energies and Free Radicals Bond Bond Dissociation Energies (kJ/mol) Bond BDE Bond BDE (kJ/mol) (kJ/mol) H-H 436 CH3-H 439 H-F 570 CH3CH2-H 432 H-CI 432 (CH3CH2 413 BDE Bond (kJ/mol) 10-N 350 0-0 180 F-F O-H 0-C O-F 460 BDE (kJ/mol) | 200 180 159 | H-Br H-I 366 298 404 350 O-C1200 O-Br (CH3)3C-H C-C (sigma) C=C(pi) 210 C1-C1243 Br-Br 193 243 0 -I 220 I-I | 151 A. The enzyme methane monooxygenase catalyzes a remarkably...
1. For the following substitution reaction, please (a) calculate the AHran. (b) is this reaction an exothermic or endothermic process? (5 pts) CHE CH3 H-C-Br + H-O-H + H-Br CHE н-с-он сн. Bond dissociation energies (CH3)2CH-Br 285 kJ/mol (CH),CH-OH 401 kJ/mol H-OH 498 kJ/mol H-Br 368 kJ/mol
Ch
9 Q 39
Which is expected to have the largest carbom-oxygen bond
dissociation energy?
-HCOOH
-H2CO3
-CO2
-CO
9.106
Use the bond dissociation energies from the table provided to
calculate an approximate standard enthalpy in kilojoules for the
reaction of ethylene with hydrogen to yield ethane
Problem 9.106 Average Bond Dissociation Energies, D /mol) H-H 136 C-H410N - 390 0 F 1801-11 H-C 410 C-C 350 N-C 300 0-d 200 S-F 310 H-F 570 C-F 450 N-F 270 o-Br210...
7. Calculate the AHRxn for the following transformation. A table of bond dissociation energies is provided below. All work must be shown for partial credit. (8 pts.) hv Br + Br-Br + HBr: Table of Selected Homolytic Bond Dissociation Energies. Bond Broken (CH3)3C-H (CH3)2CH-H Br-Br H-Br CH3CH2-H (CH3)3C-Br (CH3)2CH-Br CH3CH2-Br kJ/mol 400 413 193 366 421 292 298 295
Question 6 0.5 pts The table below contains the bond dissociation energies for common bonds. 410 Dissociation energy Bond (kJ/mol) |C-c 350 CNC 611 C-H 350 (c=0 799 0-0 180 O=O 498 460 C-O H-o Calculate the bond dissociation energy required for breaking all the bonds in a mole of water molecules, H20. Express your answer numerically, in terms of kJ/mol, and to three significant figures.
Calculate the enthalpy of the reaction below using the given bond energies. Cl2 + Br2 → 2 BrCI Bond Energy (kJ/mol) CI-CI 242 Br-Br 193 Br-CI 218 0 -267 kj 217 kJ 0-1 kj 653 kJ
What is the enthalpy change for the reaction shown below?
C2H2 + HCl -> CH2CHCl
a. -34 kJ/mole
b. -87 kJ/mole
c. +34 kJ/mole
d. +87 kJ/mole
Bond Dissociation Energies Average Single Bond Energies (kJ per mole) H 436414 389 464 569 293 318 339 431 368 297 347 293 351 439 289 264 259 330 276 238 159 201 272 201 243 138 184 368 351 201 159 540 490 285 255 197 176 213 226 360 289 Si...
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