Chapter 9, Problem 15SAQ

Interpretation Introduction

To determine: Which halogen produces the most exothermic halogenation reaction with ethene. Consider the halogenation of ethane, where $\mathrm{X}$ is a generic halogen:

${\mathrm{H}}_{2}C={\mathrm{CH}}_2\left(g\right)+{\mathrm{X}}_2\left(g\right)\to {\mathrm{H}}_2\mathrm{CX}-{\mathrm{CH}}_2\mathrm{X}\left(g\right)$

Fluorine

Chlorine

Bromine

Iodine