Chapter 18, Problem 18.118SP

Ethylene oxide, ${\text{C}}_{\text{2}}{\text{H}}_{\text{4}}\text{O,}$ is used to make antifreeze (ethylene glycol, ${\text{(HOCH}}_{\text{2}}{\text{CH}}_{\text{2}}\text{OH)}$ . It is produced industrially by the catalyzed air oxidation of ethylene:

   ${\text{2CH}}_{\text{2}}=C{H}_2(g)+O_2(g)\to 2CH2-C{H}_2(g)$

Use the data in Appendix B to calculate $\Delta G^o$ and $K_p$ for this reaction at 25^oC.