HOMEWORK 1.6 3.8a Calculate the standard reaction entropy at 298 K of (a)2 CH 3 CHO(g) + O 2 (g) → 2 CH 3 COOH(l) 3.9a Combine the reaction entropies calculated in Exercise 3.8a with the reaction enthalpies, and calculate the standard reaction Gibbs energies at 298 K. 3.10a Use standard Gibbs energies of formation to calculate the standard reaction Gibbs energies at 298 K of the reactions in Exercise 3.8a. 3.12a The standard enthalpy of combustion of solid phenol (C 6 H 5 OH) is −3054 kJ mol −1 at 298 K and its standard molar entropy is 144.0 J K −1 mol −1 . Calculate the standard Gibbs energy of formation of phenol at 298 K. 3.14b Calculate the maximum non-expansion work per mole that may be obtained from a fuel cell in which the chemical reaction is the combustion of propane at 298 K. 3.16b
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