CHM116 week 9 disc probs

CHM116 week 9 disc probs - Problems for week 9 discussion...

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At the boiling point of hydrogen peroxide, the following process reaches equilibrium at 1.0 atm H 2 O 2 ( l ) H 2 O 2 ( g ) Use the following thermodynamic information at 298 K to determine this temperature. Substance H 2 O 2 ( l ) H 2 O 2 ( g ) H f (kJ/mol) -187.7 -136.3 G f (kJ/mol) -120.4 -105.6 S ° (J/K mol) 109.6 232.7 1. Problems for week 9 discussion Name Consider the figure at right, which shows G for a chemical process plotted against absolute temperature. From this plot, it is reasonable to conclude that: a. H > 0, S > 0 b. H > 0, S < 0 c. H < 0, S > 0 d. H < 0, S < 0 e. None of the above 2. What is the free energy change, G , for the equilibrium between hydrogen iodide, hydrogen, and iodine at 453 C? K c = 0.020 2HI( g ) H 2 ( g ) + I 2 ( g ) Δ G º = - RT ln K 3. 4.
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CHM116 week 9 disc probs - Problems for week 9 discussion...

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