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3) Answer all parts of the following question. a. The reaction: Al(s) + Fe2O3(s) → Fe(s)...

3) Answer all parts of the following question.

a. The reaction: Al(s) + Fe2O3(s) → Fe(s) + Al2O3(s) has ΔH = -847.6 kJ and ΔS = -41.3 J/K at 25°C. Calculate ΔG and determine if it is spontaneous.

b. Above what temperature does the following reaction become nonspontaneous?

FeO(s) + CO(g) → CO2(g) + Fe(s) ΔH = -11.0 kJ; ΔS = -17.4 J/K

c. Find ΔSsurr and predict whether or not this reaction will be spontaneous at 398 K.

NH3(g) + O2(g) → N2(g) + H2O(g) ΔH = -1267 kJ

d. Which one of the following has the highest standard molar entropy, S° at 25°C and why?

a: F2(g) b: Cl2(g) c: N2(g) d: O2(g) e: H2(g)

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