Homework Answers
delta H = BE(reactant) - BE(product)
-137 = BE(C=C) + 4*BE(C-H) + BE(H-H) - BE(C-C) - 6*BE(C-H)
-137 = BE(C=C) + BE(H-H) - BE(C-C) - 2*BE(C-H)
-137 = 614 + 436 - 348 - 2*BE(C-H)
2*BE(C-H) = 839
BE(C-H) = 420 KJ
Answer: A
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Given the following bond energies and the heat of reaction for the process below, estimate the...
Using the bond energies from the table below estimate ∆H for the following reaction C2H2(g) +...
Using the bond energies from the table below estimate ∆H for the following reaction C2H2(g) + H2(g) → C2H4(g) C-H (413), H-H (436), C-C (348), C=C (614), C≡C (839) A) +165 kJ/mol B) -390. kJ/mol C) +390. kJ/mol D) –124 kJ/mol E) –165 kJ/mol
Use bond energies from this table to estimate the heat of reaction for the following process:...
Use bond energies from this table to estimate the heat of
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Question 2 4 pts Use the given average bond dissociation energies (BDE) to estimate A Hreaction...
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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...
Using the table of bond energies below, the delta H for the reaction is? H2C =...
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Bond Energies and Heat of Reaction Use the given bond energy values to estimate AH for...
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Part A. Find the average enthalpy of the PF bond in PF5(g) from the following standard...
Part A. Find the average enthalpy of the PF bond in PF5(g) from
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Part B.
Using the bond energies from the table below estimate AH for the following reaction C2H2(g) + H2(g) → C2H4(g) Bond Bond energy [kJ/mol] [C-H 413 H-H 436 |C-C 348 C=C 614 csc 839
Bond Energies and Heat of Reaction Use the given bond energy values to estimate AH for...
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The enthalpy change for the following reaction is 95.4 kJ. Using bond energies, estimate the N-H...
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...
Use bond energies from this table to estimate the heat of
reaction for the following process:
4. Use bond energies from this table to estimate the heat of reaction for the following process: HH н C= C + Cl - H- C- C-H CICI Some Bond Energies (kJ/mol) Н-Н O=O • Diatomic molecules (actual values) 432.0 Cl-ci 240.0 C=0 1071 493.6 Other bonds (avg. values) C-C 345 C=C 615 C=C 835 C-N 305 CEN 615 C=N 890 C-H 415 C=O...
Question 2 4 pts Use the given average bond dissociation energies (BDE) to estimate A Hreaction for the combustion of hydrogen in oxygen that produces water: 2H2 (8) + O26 --> 2H20 (6) Bond BDE(kJ/mol) H-H 436 0-0 498 H-O 460
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Bond Energies and Heat of Reaction Use the given bond energy values to estimate AH for the following gas-phase reaction. H2N + HN_NH, + H2N— NH2 - * | - + HO Học HAC CH H₃C CH₂ (Simple energy units required for the answer.) 142 kJ 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 Dec = 839 DC-N = 305 DC-N = 615 DCEN...
Part A. Find the average enthalpy of the PF bond in PF5(g) from
the following standard molar enthalpies of formation (in kJ/mol):
PF5(g) (–1595), P(g) (315), F(g) (79).
Part B.
Using the bond energies from the table below estimate AH for the following reaction C2H2(g) + H2(g) → C2H4(g) Bond Bond energy [kJ/mol] [C-H 413 H-H 436 |C-C 348 C=C 614 csc 839
Bond Energies and Heat of Reaction Use the given bond energy values to estimate AH for the following gas-phase reaction. HC= CH - CH + HN HCC HC— CH HC=CH NỮ NH. + HC cỮch Cáo + HẠO HC- CH NH2 HON (Simple energy units required for the answer.) -454 kJ 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 DCEC = 839 DC-N =...
13. (12 pts) Using the following bond dissociation energies, estimate the enthalpy of the reaction for the reaction between acetylene and hydroiodic acid to generate 1,2-diiodoethane. нн H-CEC-H 2 H- Bond Bond Enthalpy (kJ/mol) Bond Bond Enthalpy (kJ/mol) 839 C-H 413 С-С сс 348 C-I 240 Н-1 299 7
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