Which of the following statement about the bonds in the reactants and products i

Question

Which of the following statement about the bonds in the reactants and products in most accurate? (A) The sum of the bond enthalpies of the bonds in the reactant is greater than the sum of the bond enthalpies of the bond in the products. (B) The sum of the bond enthalpies of the bond in the reactant is less than the sum of the bond enthalpies of the bonds in the products. (C) The length of the bond between carbon and oxygen in CH^3OH is shorter than the length of the bond between carbon and oxygen in CO. (D) All of the bonds in the reactant and products are polar.

Explanation / Answer

a)

Not always true, only valid for exothermic reactions

b)

Not always true, only valid for endothermnic reaction

c)

C-O and C(triple)O

Since the triple bond has more energy, then the two species will be closer together, therefore, this argument is false

d)

False, not all bonds are polar, since C-O and C-C are not alike

NOTE:

If this comes from a preivous quiestion, if the reaciotn is endothermic, choose B,

choose A, if this is exothermic

Related Questions

Navigate

• Browse (All)
• Browse W
• Subjects

---

---

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