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3. Estimate the change in free energy (AG°) for the following reactions and classify as endothermic, exothermic, or neutral. Note that Ph = benzene as a substituent. a) CI• - HCI 85 108 85-108 =-23 exotheemic HCH-H OH b) + H20 9s l19) - - 64 exotheremic -Cts CH-CH2-H * CH3CH3 H-C-H H- C-H +. H2 2 CH4 (98 104) - ( l04 ocam) = -6 exothermic

3. Estimate the change in free energy (AG°) for the following reactions and classify as endothermic, exothermic, or neutral. Note that Ph = benzene as a substituent. a) CI• - HCI 85 108 85-108 =-23 exotheemic HCH-H OH b) + H20 9s l19) - - 64 exotheremic -Cts CH-CH2-H * CH3CH3 H-C-H H- C-H +. H2 2 CH4 (98 104) - ( l04 ocam) = -6 exothermic

Chemistry
Chemistry
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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
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Would the change in free energy for each be correct? I'm also confused on C
TABLE 4-2 Bond-Dissociation Enthalpies for Homolytic Cleavages A:B A.+·B Bond-Dissociation Bond-Dissociation Enthalpy Enthalpy kJ/mol kcal/mol Bond kJ/mol kcal/mol Bond Bonds to secondary carbons H-X bonds and X-X bonds (CH3)2CH-H (CH3)2CH-F (CH3),CH-CI 397 95 435 104 H-H 444 106 D-D 444 106 335 80 F-F 159 38 Cl-CI 242 58 (CH3)2CH-Br 285 68 Br-Br 192 46 222 53 (CH3)2CH-I 1-I 151 36 381 91 (CH3)2CH-OH H-F 569 136 H-CI 431 103 Bonds to tertiary carbons 91 (CH),С— Н (CH3)3C-F (CH3)3C-CI (CH3)3C-Br (CH3)3C-I (CH),С — ОН 381 H-Br 368 88 H-I 297 71 444 106 HO-H 498 119 331 79 Но—ОН 213 51 272 65 209 50 Methyl bonds 381 91 CH3-H 435 104 CH3-F 456 109 Other C-H bonds 351 84 CH3-Cl CH3-Br PHCH2-H (benzylic) 356 85 293 70 CH2=CHCH2H (allylic) 364 87 CH3-I 234 56 CH2=CH-H (vinyl) 464 111 CH3-OH 381 91 Ph-H (aromatic) 473 113 Bonds to primary carbons НСс— Н (асetylenic) 523 125 CH;CH2-H 410 98 CH3CH2-F 448 107 C-C bonds CH3CH2-CI CH,CH2-Br 339 81 CH3-CH3 368 88 285 68 CH;CH2 CH3 356 85 CH;CH2-I 222 53 CH,CH2-CH,CH, 343 82 CH3CH2-OH 381 91 (CH;),CH-CH, 351 84 CH;CH,CH,-H 410 98 (CH3)3C-CH3 339 81 CH;CH2CH,-F 448 107 CH;CH,CH2-CI CH;CH2CH2-Br 339 81 285 68 CH3CH2CH,-I CH;CH2CH,-OH 222 53 381 91 O 2013 Pearson Education, Inc. Selectivity of Halogen Radicals in Hydrogen Abstractions
Transcribed Image Text:TABLE 4-2 Bond-Dissociation Enthalpies for Homolytic Cleavages A:B A.+·B Bond-Dissociation Bond-Dissociation Enthalpy Enthalpy kJ/mol kcal/mol Bond kJ/mol kcal/mol Bond Bonds to secondary carbons H-X bonds and X-X bonds (CH3)2CH-H (CH3)2CH-F (CH3),CH-CI 397 95 435 104 H-H 444 106 D-D 444 106 335 80 F-F 159 38 Cl-CI 242 58 (CH3)2CH-Br 285 68 Br-Br 192 46 222 53 (CH3)2CH-I 1-I 151 36 381 91 (CH3)2CH-OH H-F 569 136 H-CI 431 103 Bonds to tertiary carbons 91 (CH),С— Н (CH3)3C-F (CH3)3C-CI (CH3)3C-Br (CH3)3C-I (CH),С — ОН 381 H-Br 368 88 H-I 297 71 444 106 HO-H 498 119 331 79 Но—ОН 213 51 272 65 209 50 Methyl bonds 381 91 CH3-H 435 104 CH3-F 456 109 Other C-H bonds 351 84 CH3-Cl CH3-Br PHCH2-H (benzylic) 356 85 293 70 CH2=CHCH2H (allylic) 364 87 CH3-I 234 56 CH2=CH-H (vinyl) 464 111 CH3-OH 381 91 Ph-H (aromatic) 473 113 Bonds to primary carbons НСс— Н (асetylenic) 523 125 CH;CH2-H 410 98 CH3CH2-F 448 107 C-C bonds CH3CH2-CI CH,CH2-Br 339 81 CH3-CH3 368 88 285 68 CH;CH2 CH3 356 85 CH;CH2-I 222 53 CH,CH2-CH,CH, 343 82 CH3CH2-OH 381 91 (CH;),CH-CH, 351 84 CH;CH,CH,-H 410 98 (CH3)3C-CH3 339 81 CH;CH2CH,-F 448 107 CH;CH,CH2-CI CH;CH2CH2-Br 339 81 285 68 CH3CH2CH,-I CH;CH2CH,-OH 222 53 381 91 O 2013 Pearson Education, Inc. Selectivity of Halogen Radicals in Hydrogen Abstractions
3. Estimate the change in free energy (AG°) for the following reactions and classify as endothermic, exothermic, or neutral. Note that Ph = benzene as a substituent. a) CI• HCI 85 108 85-108 = -23 exotheemic H CH-H OH b) HOOH 95 H20 119) exotheremic CH3 -CHs CH-CH2-H 身 CHCH3 H-C-H H - C. - H H2 2 CH4 (98 + L04)- ( 104 ocon) ( l04 +Low) -/6 exothermic
Transcribed Image Text:3. Estimate the change in free energy (AG°) for the following reactions and classify as endothermic, exothermic, or neutral. Note that Ph = benzene as a substituent. a) CI• HCI 85 108 85-108 = -23 exotheemic H CH-H OH b) HOOH 95 H20 119) exotheremic CH3 -CHs CH-CH2-H 身 CHCH3 H-C-H H - C. - H H2 2 CH4 (98 + L04)- ( 104 ocon) ( l04 +Low) -/6 exothermic
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