Chapter 6, Problem 6D.5P

Interpretation Introduction

Interpretation: The standard enthalpy and entropy for a hydrogen fuel cell with an overall four electron cell reaction, ${\text{2H}}_{\text{2}}\left(\text{g}\right){\text{+O}}_{\text{2}}\left(\text{g}\right)\to {\text{2H}}_{\text{2}}\text{O}\left(\text{l}\right)$ ha to be calculated within given temperature range.

Concept introduction: The standard Gibbs energy determines the spontaneity of the reactions.  Positive values of standard Gibbs energy means the reaction is non-spontaneous while negative values mean the reaction is spontaneous.  Enthalpy of a reaction determines whether the reaction releases heat or requires heat.