Estimate AHrxn for the below chemical reaction using the provided bond enthalpies. The Lewis structures hydrogen...
Bond Enthalpies CHM113 Chapter 8 Resource Worksheets AH AH,+AH2 Resource 5: Bond Enthalpies 1. Estimate the enthalpy change of the following reactions using the bond energies below. a. H-H. CI-CI - H- C H -CI AHLEWJI 14: 2 0 d. CH_(g) +H:(g) - C He(g) e. 2 NH; + 3 HOCI ™N2 + 3 H2O + 3 HCI f. CH. (8) +20,($) → CO. (8) + 2 H20 (2) g. 2 H (@) +0, (g) → 2 HO () h....
4. Use the bond enthalpies below and calculate the enthalpy of ethane combustion in kJ / mol. (AH° (H-H) = 436 kJ mol', AH° (C-H) = 435 kJ mol', AH° (0=0) = 498, AH° (CEO) = 732, AH (H-O) = 463] CzH6 (g) + 7/202 (g) - 2002 + 3H20 (g)
Problem 5.83 Use bond enthalpies in the table below to estimate ?H for each of the following reactions. Problem 5.83 Part A Use bond enthalpies in the table below to estimate ? 1 for each of the following reactions H-H(g) + Br-Br(g) ? 2H-Br(g) Express your answer in kilojoules to 3 significant figures Average Bond Enthalpies (kJ/mol) 103 kJ C-H 413 N-H 391 O-H 463 F-F 155 C-C 348 N-N 163 O-O 146 C-C 614 N-O 201 O O 495...
Using average bond enthalpies (linked above), estimate the enthalpy change for the following reaction: 2CO(g) + 2NO(g)2CO2(g) + N2(g) kJ Bond Bond Energy (kJ/mol) C=C 602 H-H 436 C-H 413 C-C 346 Using average bond enthalpies (linked above), estimate the enthalpy change for the following reaction: I2(g) + Cl2(g)2ICl(g) kJ Using the values of bond energy from the table above, estimate the enthalpy change for the following reaction: C2H4(g) + H2(g) C2H6(g) kJ
The answer is D, but I cannot figure out why. Benzene, C6H6, has two resonance structures: H H -0 Η H CH H Given: 2 C6H6(g) + 15 O2(g) → 12 CO2(g) + 6 H2O(g); AHıxa = -6340 kJ Use the provided average bond dissociation enthalpies (D) to estimate the carbon-carbon bond dissociation enthalpy in benzene. Bond D(kJ/mol) A. 307 kJ/mol C-H 413 B. 446 kJ/mol C–C 348 C. 481 kJ/mol C=C 614 D. 508 kJ/mol O=0 498 E. 543...
2) From the enthalpies of reaction provided, calculate the AH for the reaction of carbon with hydrogen as shown below. Is the reaction exothermic or endothermic? How many grams of C3Hg are produced with an enthalpy change of 209.4 kJ? 3 C(s) + 4 H2(g) - C He(a) moto-non (5+3=2 C3H8(9) + 5 O2(g) 3 CO2(g) + 4 H2O(9) AH = -2043 kJ/mol AH = -393.5 kJ/mol C(s) + Ozon 2 H2(g) + O2th CO2(g) 2 H20(9) AH = -483.6...
Using the bond enthalpies in the Average Bond Enthalpies table, determine the approximate enthalpy (in kJ) for each of the following reactions. (Assume the average bond enthalpy of the Cl–F bond is 254 kJ/mol.) (a) Cl2(g) + 3 F2(g) → 2 ClF3(g) (b) H2C=CH2(g) + H2(g) → H3CCH3(g) (c) 2 CH3(C=O)H(g) + 5 O2(g) → 4 CO2(g) + 4 H2O(g) ITITIT Average Bond Enthalpies AH bond (kJ/mol) bond AHond (kJ/mol) bond AH bond (kJ/mol) bond bond AH bond (kJ/mol) С-Н...
Use the bond enthalpies in the table below to determine the enthalpy of reaction in the following questions: Average Bond-Enthalpies- (kJ/mol) Single Bonds -H 41 3 348 293 358 485 N- 391 -H 463 -O 146 F-F 155 N-N 163 N-O 201 272 N-CI 200 N-Br 243 CI-P 253 N-I CI-CI 242 O-CI 203 -I 234 C-C Br-p 237 B-CI 218 Br-Br 193 339 327 S-Cl 253 S-Br 218 S-H 240 259 -X-H 436 567 431 366 299 208 175...
The enthalpy change for the following reaction is 95.4 kJ. Using bond energies, estimate the N-H bond energy in N2H4(g). N2(g) + 2H2(g) N2H4(g) kJ/mol The enthalpy change for the following reaction is -92.2 kJ. Using bond energies, estimate the H-H bond energy in H2(g). 2NH3(g) N2(g) + 3H2(g) kJ/mol D Single Bonds Multiple Bonds C N O F Si P S a Br 1 H 436 413 391 463 565 318 322 347 C 413 346 305 358 485...
5.84 Use bond enthalpies in Table 5.4 to estimate AH for each of the following reactions: (a) Br Br Br--©-H + C1-C1 —— Br-C-C1 + 01-H Br Br (b) H-C-H + 2 O=0 → 0=C=0 + 2 H-0-H Н F-F 155 O=0 463 146 495 190 203 234 Cl-F CI-CI 253 242 TABLE 5.4 Average Bond Enthalpies (kJ/mol) CH 413N -H 391 0-H C-C 348 N-N 163 0-0 C=C 614 N-O 201 C-N N-F 272 O-F C-O 358 N-CI 200...