Organic Chemistry
Organic Chemistry
2nd Edition
ISBN: 9781118452288
Author: David R. Klein
Publisher: WILEY
Question
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Chapter 4, Problem 49PP

(a)

Interpretation Introduction

Interpretation:

The compound is needed to found which has more heat of combustion value between the given set of compounds.

Concept introduction:

  • Heat of combustion: heat of combustion is the numeric value, which represents the energy required to burn a hydrocarbon completely in presence of oxygen. For more stable molecule heat of combustion value will be high when compare with least stable molecule.
  • Chair conformer: chair conformer is a stable conformer for cyclohexane compound. In this chair conformer two positions are important for substitutions one is equatorial and other one axial position. Axial positions are parallel to the axis of ring while equatorial positions are perpendicular to the axis of the ring.

    Example:

    Organic Chemistry, Chapter 4, Problem 49PP , additional homework tip  1

  • Equatorial position is more stable than axial position; therefore a compound with equatorial substituents has high heat of combustion value than a compound with axial substituents.

(b)

Interpretation Introduction

Interpretation:

The compound is needed to found which has more heat of combustion value between the given set of compounds.

Concept introduction:

  • Heat of combustion: heat of combustion is the numeric value, which represents the energy required to burn a hydrocarbon completely in presence of oxygen. For more stable molecule heat of combustion value will be high when compare with least stable molecule.
  • Chair conformer: chair conformer is a stable conformer for cyclohexane compound. In this chair conformer two positions are important for substitutions one is equatorial and other one axial position. Axial positions are parallel to the axis of ring while equatorial positions are perpendicular to the axis of the ring.

    Example:

    Organic Chemistry, Chapter 4, Problem 49PP , additional homework tip  2

  • Equatorial position is more stable than axial position; therefore a compound with equatorial substituents has high heat of combustion value than a compound with axial substituents.

(c)

Interpretation Introduction

Interpretation:

The compound is needed to found which has more heat of combustion value between the given set of compounds.

Concept introduction:

  • Heat of combustion: heat of combustion is the numeric value, which represents the energy required to burn a hydrocarbon completely in presence of oxygen. For more stable molecule heat of combustion value will be high when compare with least stable molecule.
  • Chair conformer: chair conformer is a stable conformer for cyclohexane compound. In this chair conformer two positions are important for substitutions one is equatorial and other one axial position. Axial positions are parallel to the axis of ring while equatorial positions are perpendicular to the axis of the ring.

    Example:

    Organic Chemistry, Chapter 4, Problem 49PP , additional homework tip  3

  • Equatorial position is more stable than axial position; therefore a compound with equatorial substituents has high heat of combustion value than a compound with axial substituents.

(d)

Interpretation Introduction

Interpretation:

The compound is needed to found which has more heat of combustion value between the given set of compounds.

Concept introduction:

  • Heat of combustion: heat of combustion is the numeric value, which represents the energy required to burn a hydrocarbon completely in presence of oxygen. For more stable molecule heat of combustion value will be high when compare with least stable molecule.
  • Chair conformer: chair conformer is a stable conformer for cyclohexane compound. In this chair conformer two positions are important for substitutions one is equatorial and other one axial position. Axial positions are parallel to the axis of ring while equatorial positions are perpendicular to the axis of the ring.

    Example:

    Organic Chemistry, Chapter 4, Problem 49PP , additional homework tip  4

  • Equatorial position is more stable than axial position; therefore a compound with equatorial substituents has high heat of combustion value than a compound with axial substituents.

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Chapter 4 Solutions

Organic Chemistry

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