Bond Dissociation Energies, D°298, for X kJ/mol (kcal/mol) -Y Cl он CH3 CH3CH2 CH3- 439 (105) 452 (108) 356 (85) 293 (70) 238 (57) 385 (92)356 (85) 377 (90) 368 (88) 510 (122) 336 (80) CH3CH2423 (101) 444 (106) 335 (80) 285 (68) 228 (53) 380 (91) 356 (85) 368 (88) 351 (84) 339 (81) 305 (73) (CH32CH 409 (98) 448 (107)339 (81) 274 (65)226 (54) 385 (92) (CH3)3C404 (97) 331 (79263 (63) 213 (51) 380 (91) CH2 CHCH2 362 (86.5) 289 (69230 (55) 172 (41) 376 (90) 301 (72)243 (58) 201 (48) 332 (79) CH2 CH 465 (111) 368 (87) 259 (62) 406 (97) 536 (128) 473 (3) 527 (126) 402 (96) 337 (80.5) 274 (65) 464 () 427 (102) 377 (90) CH30-1436 (104) 333 (80) 435 (104) 569 (136) 431 (103) 368 (88) 297 (71) 498 (119) 449 (107) 439 (105) 423 (101) 543 (130) Most data from CRC handbook of Chemistry and Physics, 85th ed, D. R. Lide, ed., CRC press, Boca Raton, FL, 2004, p 9-65. Uncertainties range from less than 1 kJ/mol to ca. 20 kJ/mol (5 kcal/mol) and are listed in the CRC handbook. Additional Bond Dissociation Energies kJ/mol (kcal/mol) Bond Do Bond Do BondD° Bond Do 298 F-F 159 (38) Buo-OrBu59 (38 HC-CH 965 (231) (CH3)3Si-H 378 (90) CHCI 243 (58) | o-o | 498 (1 19) | HC-C-H | 556 (133) | (CH3)3Ge-H | 340 (81) Br-Br | 192 (46) | ОС-О 732 (175) | Cl3C-C1 | 392 (94) | nBu3Sn-H | 308 (74) I-I 151 (36 H2C-0 732 (175) CH3CO-H 374 (89) CH3S-H 365 (87) 298 298 298 HO-OH 213 (51) H2C CH2 728 (174) Most data from CRC handbook of Chemistry and Physics, 85th ed., D. R. Lide, ed., CRC press, Boca Raton, FL, 2004, p 9-52. Uncertainties range from less than 1 kJ/mol to ca. 20 kJ/mol (5 kcal/mol) and are listed in the CRC handbook.
Homework Answers
Add Answer to:
For the reaction below CH&CH2-HHO- OH CH3CH2-OH +H OhH References button and then click the Table...
Calculation of heat of reaction For the each reaction, A.) estimate for gas phase and for...
Calculation of heat of reaction
For the each reaction,
A.) estimate for gas phase and for P change using bonded
dissociation energies from the table
B.) is the reaction exothermic or endothermic
C.) is the reaction likely to proceed spontaneously in the
direction written?
Bond Dissociation Energies Bond Dissociation Energies, D°298, for X-Y kJ/mol (kcal/mol) cl Br он NH2 CH3 CHCH2 CN CH3 439 (105) 452 (108) 356 (85) 293 (70) 238 (57) 385 (92) 356 (85) 377 (90) 368...
Use the References to access important values if needed for this question. For the reaction below...
Use the References to access important values if needed for this question. For the reaction below H CI . H-C + + a. Estimate the gas phase enthalpy change using bond dissociation enthalpies from the OWL Table Reference, not data from your text. Click the References button and then click the Tables link on the drop-down that appears. Include algebraic sign and units. b. Is the reaction exothermic or endothermic? c. Is the reaction likely to proceed spontaneously in the...
For the reaction below CHy CH a. Estimate the gas phase enthalpy change using bond dissociation e...
For the reaction below CHy CH a. Estimate the gas phase enthalpy change using bond dissociation enthalpies from the OWL. Table Reference, not data from your text. button and then click the Tables link on the drop-down that appears. Include algebrakc sign and units b. Is the reaction exothermic or endothermic? c. Is the reaction likely to proceed spontaneously in the direction written? Submit Answer Retry Entire Group 1 more group attempt remaining 1 For the reaction below: a. Estimate...
For the reaction below: CH4 •он CH3 H-OH a. Estimate the gas phase enthalpy change using...
For the reaction below: CH4 •он CH3 H-OH a. Estimate the gas phase enthalpy change using bond dissociation enthalpies from the OWL Table Reference, not data from your text. Click the References button and then click the Tables link on the drop-down that appears. Include algebraic sign and units. b. Is the reaction exothermic or endothermic? c. Is the reaction likely to proceed spontaneously in the direction written? For the reaction below: CH4 + Fz CH3-F H/F a. Estimate the...
Bond Dissociation Energies, Dº298, for X-Y kJ/mol (kcal/mol) X\Y= H F Ci Br I OH NH2...
Bond Dissociation Energies, Dº298, for X-Y kJ/mol (kcal/mol) X\Y= H F Ci Br I OH NH2 CH3 CH3CH2- CN CH3- CH3CH2 (CH3)2CH- 439 (105) 452 (108) 356 (85) 293 (70) 423 (101) 444 (106) 335 (80) 285 (68) 238 (57) 385 (92) 356 (85) 377 (90) 368 (88) 510 (122) 228 (53) 380 (91) 356 (85) 368 (88) 336 (80) 409 (98) 448 (107) 339 (81) 274 (65) 226 (54) 385 (92) 351(84) 331 (79) 263 (63) 213 (51) 380...
a. Estimate the gas phase enthalpy change using bond dissociation enthalpies from the OWL Table Reference, not data from...
a. Estimate the gas phase enthalpy change
using bond dissociation enthalpies from the OWL Table
Reference, not data from your text. Click the
References button and then click the
Tables link on the drop-down that appears. Include
algebraic sign and units.
b. Is the reaction exothermic or
endothermic?
c. Is the reaction likely to proceed
spontaneously in the direction written?
Use the References to access important values if needed for this question For the reaction below: Br OH -CH CHy-...
TABLE 6.1 BOND DISSOCIATION ENERGIES (A) OF COMMON BONDS KJ/MOL KCAL/MOL Bonds to H H2C=CH-CH2 HCC-CH,...
TABLE 6.1 BOND DISSOCIATION ENERGIES (A) OF COMMON BONDS KJ/MOL KCAL/MOL Bonds to H H2C=CH-CH2 HCC-CH, KJ/MOL KCAL/MOL 385 92 489117 HH 435 80 104 104 KJ/MOL KCAL/MOL 444 106 335 285 222 381 91 (CH3)2CH-F (CH) CH-CI (CH3)2CHBr (CH),CH (CH3)2CH-OH H-CH3 H-CH2CH3 HCH(CH3 H- CH3) 435 104 109 Bonds to methyl CH; CHEF CH3-C1 CH3-Br CH3 CH, OH CH I I 356 85 381 91 HC-c-X CHE (CH3)3C-H (CH3),C-F (CH),C-C1 (CH3)2C-Br (CH3), (CH)C-OH 381 444 331 106 111 464...
Draw a structural formula of the R configuration of the compound shown below. The energy difference...
Draw a structural formula of the R configuration of the compound
shown below.
The energy difference is kJ/mol.
In the more stable chair:
The vinyl(ethenyl) group is in the
_________axial,equatorial,both position.
The methyl group is in the
_________axial,equatorial,both position.
At 25°C the equilibrium percent of the more stable chair
conformation is approximately
_____60,65,70,75,80,85,90,95,>95.
Answers:
The energy difference is kJ/mol.
In the more stable chair:
The chloro group is in the
_________axialequatorialboth position.
The methyl group is in the
_________axial,equatorial,both, position.
At 25°C...
Problem #3 Calculate AH° for the following reaction using the bond energies found in Table 6.1...
Problem #3 Calculate AH° for the following reaction using the bond energies found in Table 6.1 on page 228. Is this reaction spontaneous? (CH3)3C-H + 12 (CH3)3C-1 + HI TABLE 6.1 BOND DISSOCIATION ENERGIES (AH) OF COMMON BONDS KJ/MOL KCAL/MOL H2C=CH-CH3 HC-C-CH KJ/MOL KCAL/MOL 385 92 489117 KJ/MOL KCAL/MOL 444 106 335 80 285 Bonds to H. H-H H-CH3 H-CH2CH3 H-CH(CH3)2 H-C(CH3)3 (CH3)2CH-F (CH3)2CH-CI (CH3)2CH-Br (CH3)2CH- (CH3)2CH-OH 68 222 435 104 435 104 41098 39795 91 473 113 53 381...
1. Calculate AH for each reaction using bond dissociation values. Determine if the reaction is exothermic...
1. Calculate AH for each reaction using bond dissociation values. Determine if the reaction is exothermic or endothermic a. CH3CH2CH3 + Br2 — CHșCH,CH,-Br + HBr ОН + H₂O + HI 498 297 aaa 720 - 698 - 22 401 andiotamie Table 6.2 Bond Dissociation Energies for Some Common Bonds IA-B - A. + .B] Bond AH kJ/mol (kcal/mol) Bond AH kJ/mol kcal/mol) 456 569 431 H-Z bonds H-F H-CI H-Br H-1 Н-ОН (136) (103) (88) 368 297 498 (71)...
Calculation of heat of reaction
For the each reaction,
A.) estimate for gas phase and for P change using bonded
dissociation energies from the table
B.) is the reaction exothermic or endothermic
C.) is the reaction likely to proceed spontaneously in the
direction written?
Bond Dissociation Energies Bond Dissociation Energies, D°298, for X-Y kJ/mol (kcal/mol) cl Br он NH2 CH3 CHCH2 CN CH3 439 (105) 452 (108) 356 (85) 293 (70) 238 (57) 385 (92) 356 (85) 377 (90) 368...
Use the References to access important values if needed for this question. For the reaction below H CI . H-C + + a. Estimate the gas phase enthalpy change using bond dissociation enthalpies from the OWL Table Reference, not data from your text. Click the References button and then click the Tables link on the drop-down that appears. Include algebraic sign and units. b. Is the reaction exothermic or endothermic? c. Is the reaction likely to proceed spontaneously in the...
For the reaction below CHy CH a. Estimate the gas phase enthalpy change using bond dissociation enthalpies from the OWL. Table Reference, not data from your text. button and then click the Tables link on the drop-down that appears. Include algebrakc sign and units b. Is the reaction exothermic or endothermic? c. Is the reaction likely to proceed spontaneously in the direction written? Submit Answer Retry Entire Group 1 more group attempt remaining 1 For the reaction below: a. Estimate...
For the reaction below: CH4 •он CH3 H-OH a. Estimate the gas phase enthalpy change using bond dissociation enthalpies from the OWL Table Reference, not data from your text. Click the References button and then click the Tables link on the drop-down that appears. Include algebraic sign and units. b. Is the reaction exothermic or endothermic? c. Is the reaction likely to proceed spontaneously in the direction written? For the reaction below: CH4 + Fz CH3-F H/F a. Estimate the...
Bond Dissociation Energies, Dº298, for X-Y kJ/mol (kcal/mol) X\Y= H F Ci Br I OH NH2 CH3 CH3CH2- CN CH3- CH3CH2 (CH3)2CH- 439 (105) 452 (108) 356 (85) 293 (70) 423 (101) 444 (106) 335 (80) 285 (68) 238 (57) 385 (92) 356 (85) 377 (90) 368 (88) 510 (122) 228 (53) 380 (91) 356 (85) 368 (88) 336 (80) 409 (98) 448 (107) 339 (81) 274 (65) 226 (54) 385 (92) 351(84) 331 (79) 263 (63) 213 (51) 380...
a. Estimate the gas phase enthalpy change
using bond dissociation enthalpies from the OWL Table
Reference, not data from your text. Click the
References button and then click the
Tables link on the drop-down that appears. Include
algebraic sign and units.
b. Is the reaction exothermic or
endothermic?
c. Is the reaction likely to proceed
spontaneously in the direction written?
Use the References to access important values if needed for this question For the reaction below: Br OH -CH CHy-...
TABLE 6.1 BOND DISSOCIATION ENERGIES (A) OF COMMON BONDS KJ/MOL KCAL/MOL Bonds to H H2C=CH-CH2 HCC-CH, KJ/MOL KCAL/MOL 385 92 489117 HH 435 80 104 104 KJ/MOL KCAL/MOL 444 106 335 285 222 381 91 (CH3)2CH-F (CH) CH-CI (CH3)2CHBr (CH),CH (CH3)2CH-OH H-CH3 H-CH2CH3 HCH(CH3 H- CH3) 435 104 109 Bonds to methyl CH; CHEF CH3-C1 CH3-Br CH3 CH, OH CH I I 356 85 381 91 HC-c-X CHE (CH3)3C-H (CH3),C-F (CH),C-C1 (CH3)2C-Br (CH3), (CH)C-OH 381 444 331 106 111 464...
Draw a structural formula of the R configuration of the compound
shown below.
The energy difference is kJ/mol.
In the more stable chair:
The vinyl(ethenyl) group is in the
_________axial,equatorial,both position.
The methyl group is in the
_________axial,equatorial,both position.
At 25°C the equilibrium percent of the more stable chair
conformation is approximately
_____60,65,70,75,80,85,90,95,>95.
Answers:
The energy difference is kJ/mol.
In the more stable chair:
The chloro group is in the
_________axialequatorialboth position.
The methyl group is in the
_________axial,equatorial,both, position.
At 25°C...
Problem #3 Calculate AH° for the following reaction using the bond energies found in Table 6.1 on page 228. Is this reaction spontaneous? (CH3)3C-H + 12 (CH3)3C-1 + HI TABLE 6.1 BOND DISSOCIATION ENERGIES (AH) OF COMMON BONDS KJ/MOL KCAL/MOL H2C=CH-CH3 HC-C-CH KJ/MOL KCAL/MOL 385 92 489117 KJ/MOL KCAL/MOL 444 106 335 80 285 Bonds to H. H-H H-CH3 H-CH2CH3 H-CH(CH3)2 H-C(CH3)3 (CH3)2CH-F (CH3)2CH-CI (CH3)2CH-Br (CH3)2CH- (CH3)2CH-OH 68 222 435 104 435 104 41098 39795 91 473 113 53 381...
1. Calculate AH for each reaction using bond dissociation values. Determine if the reaction is exothermic or endothermic a. CH3CH2CH3 + Br2 — CHșCH,CH,-Br + HBr ОН + H₂O + HI 498 297 aaa 720 - 698 - 22 401 andiotamie Table 6.2 Bond Dissociation Energies for Some Common Bonds IA-B - A. + .B] Bond AH kJ/mol (kcal/mol) Bond AH kJ/mol kcal/mol) 456 569 431 H-Z bonds H-F H-CI H-Br H-1 Н-ОН (136) (103) (88) 368 297 498 (71)...
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