Chapter 18, Problem 18.102SP

Ethanol is manufactured in indsutry by the hydration of ethylene:

   ${\text{CH}}_{\text{2}}{\text{=CH}}_{\text{2}}{\text{(g) + H}}_{\text{2}}\text{O(l)}\to C{\text{H}}_{\text{3}}{\text{CH}}_{\text{2}}\text{OH(l)}$

Using the data in Appendix B, calculate $\Delta {\text{G}}^{\text{o}}$ and show that this reaction is spontaneous at 25 °C. Why does this reaction become nonspontaneous at higher temperatures? Estimate the temperature at which the reaction becomes nonspontaneous.