Chemistry: The Molecular Science
Chemistry: The Molecular Science
5th Edition
ISBN: 9781285199047
Author: John W. Moore, Conrad L. Stanitski
Publisher: Cengage Learning
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Question

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
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