The bond dissociation energy to break 3 C-H bond(s) in 1 mole of glycerol (HOCH2CH(OH)CH2OH, see image below) molecules is H H-c- —н Н—с—о—н н—с—о—н H Single Bond H N H 432 411 346 N 386 305 167 459 358 201 142 C=C 602 C=O 799 C=C 835 C=0 1072 Multiple Bonds C=N 615 O=0 494 C=N 887 N=N 942 "All values in kJ/mol" | :0: :0: :0: H -U -CI C

Use bond enthalpies (Table 9.5 page 303) to estimate AH (kJ/mol) for the following gas-phase reaction. H H H. H+ C=C H,O H-C-C-H + | | OH H H. H Ethylene Water Ethanol

Using the table of bond enthalpies in your textbook, predict ArH for the following reaction. Express your answer in kJ/mol. HCECH + 2 H2 → H3C-CH3

Calculate the enthalpy of reaction for the combustion reaction (in kJ/mol) shown below. Enter your answer without units. ннно: •. Н-С-С—С—С-Ӧ—Н + 50=0 4 0=c=o° + 4 Н—0—Н ннн Average Bond Energy Bond (kJ/mol) H-H 436 H-C 414 H-O 464 C-C 347 C=C 611 C-0 360 C=O 799 0-0 142 O=0 498 If you cannot see the images above,then click here

Use the data below to calculate the bond energy for a C-F bond in kJ/mol. Bond Energy (kJ/mol) С-Н 413 H-F 567 С-С 347 H-CI .431 F-F 159 H-Br 364 Cl-CI 243 H-I 297. Br-Br 193 I-I 151 The reaction shown below has AH = -3372 kJ as written C2H6lg) + 7 F2(g) → 2 CF4(g) + 6 HFig) In C2H6 each C makes 3 bonds with H and 1 bond with C 485 kJ/mol O 489 kJ/mol O -503 kJ/mol O none of the answers are correct

Based on the bond energies for the reaction below, what is the enthalpy of the reaction? HC=CH (g) + 5/2 O2 (g) → 2 CO2 (g) + H2O (g) Single Bond H C N H. 432 C 411 346 N 386 305 167 459 358 201 142 C=C 602 C=O 799 C=C 835 C=0 1072 Multiple Bonds C=N 615 O=0 494 C=N 887 N=N 942 **All values in kJ/mol**

Using bond dissociation energies predict the energy given off in the following reaction:   C2H4  +  O2  →   CO2  +  H2O   a 444 kJ   b 634 kJ   c 246 kJ   d 906 kJ

Use the given bond energy values to estimate ΔH  for the following gas-phase reaction (see image attached)   D-values in kJ/mol DH-H = 432    DH-Br = 363    DH-C = 413 DH-N = 391    DH-O = 467    DC-C = 347 DC=C = 614    DC≡C = 839    DC-N = 305 DC=N = 615    DC≡N = 891    DC-O = 358 DC=O = 745    DC=O (CO2) = 799    DC≡O=1072 DC-Br = 276    DN-N = 160.    DN=N = 418 DN≡N = 941    DO-O = 146    DO=O = 495 DN-O = 201    DN=O = 607    DBr-Br = 193 DC-Cl = 339    DH-Cl = 427    DCl-Cl = 239   (Simple energy units required for the answer.)

Using bond energies from the table, estimate ΔH for the reaction below. The OH group on the product side is attached to a carbon.CH2=CH2(g) + H2O(g) ↔ CH3CH2OH(g) Bond Energies, kJ/mol Single Bonds   H C N O S F Cl Br I H 432                 C 411 346               N 386 305 167             O 459 358 201 142           S 363 272 --- --- 286         F 565 485 283 190 284 155       Cl 428 327 313 218 255 249 240     Br 362 285 243 201 217 249 216 190   I 295 213 --- 201 --- 278 208 175 149 Multiple Bonds C=C 602 C=N 615 C=O 799 CºC 835 CºN 887 CºO 1072 N=N 418 N=O 607 S=O (in SO2) 532 NºN 942 O2 494 S=O (in SO3) 469

Using bond energies and the energy change of the reaction, calculate the bond energy of the CO double bond. Do not round your answer. C3H8 is propane C3H8 + 5O2 → 3CO2 + 4H2O . Bond Energy(kJ/mol) C-H 411 C-C 346 O=O 495 O-H 459 Reaction energy(kJ) -2047