Using the table ofbond dissociation enthalpies, calculate for the reaction A (Us

Question

Using the table ofbond dissociation enthalpies, calculate for the reaction A (Use the entries for propene and propenyl halides for the calculation of cyclohexene and cyclohexenyl halides, respectively. Pay attention to the algebraic sign ofyour answer!) Table of bond dissociation enthalpies C-H bondBDE kJ/lC-X bondBDE kJ/mol) X2 and HX bonds BDE (kJ/mol) CH3-H 439 422 (CH3)2CH-H 414 405 CH2 CHCH2-H 372 464 CHg-Br C2Hs-Br (CH3)2CH-Br 309 (CH3)3C-Br CH2 CHCH2-Br 247 247 192 151 431 368 297 301 CI-CI 301 Br-Br H-CI H-Br H-I (CH3)3C-H 305 CH2- CH-H kT/mol

Explanation / Answer

DH0 = 372+192 + (-247)+(-368) = -51 kj/mol

1st step = 372+(-247)+(-368) = -243 kj

2nd step = 192+(-247) = -55 kj

rate determining step = 1st step

Related Questions

Navigate

• Browse (All)
• Browse U
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.