Calculate Delta H for the following reaction using Bond Dissociation Energies. U

Question

Calculate Delta H for the following reaction using Bond Dissociation Energies.  Use Table 4.3 on page 165 to obtain the values for individual bonds.  Use kJ/mol as the units.   If you do not have access to this table I scanned it and placed it as a link on the quiz title page.   If you think the answer is a positive number, type nothing but numerical digits for your answer.  If you think the answer is a negative number, type a minus sign followed by the numerical digits.  Do not leave any space between the minus sign and the number.  DO NOT INCLUDE THE UNITS as part of your answer.

Pleasee!

Calculate Delta H for the following reaction using Bond Dissociation Energies. Use Table 4.3 on page 165 to obtain the values for individual bonds. Use kJ/mol as the units. If you do not have access to this table I scanned it and placed it as a link on the quiz title page. If you think the answer is a positive number, type nothing but numerical digits for your answer. If you think the answer is a negative number, type a minus sign followed by the numerical digits.

Explanation / Answer

Since table is not given I am giving theory about how to calculate dH of reaction

dH of reaction = BE( reactnats bonds broken) -BE( product bonds formed)

where BE means bond energy hene dH for this reaction is

dH = BE(cyclohexyl C-C of methyl) +BE( H-H) -BE( C-H in cylcohexane)- BE(C-H in CH4)

taking approximate values from web

dH = 350+436-2(410) = -34 KJ/mol

Related Questions

Navigate

• Browse (All)
• Browse C
• Subjects

---

---

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