Question: As O2 l is cooled at 1 atm it freezes at
As O2(l) is cooled at 1 atm, it freezes at 54.5 K to form solid I. At a lower temperature, solid I rearranges to solid II, which has a different crystal structure. Thermal measurements show that ΔH for the I → II phase transition is –743.1 J/ mol, and DS for the same transition is 217.0 J K-1 mol-1. At what temperature are sol-ids I and II in equilibrium?
Answer to relevant QuestionsFrom data in Appendix 4, calculate ΔHo, ΔSo, and ΔGo for each of the following reactions at 25oC. a. CH4(g) + 2O2(g) → CO2(g) + 2H2O(g) b. 6CO2(g) + 6H2O(l) → C6H12O6(s) + 6O2(g) Glucose c. P4O10(s) + 6H2O(l) ...Consider the reaction 2POCl3(g) → 2PCl3(g) + O2(g) a. Calculate ΔGo for this reaction. The ΔGof values for POCl3(g) and PCl3(g) are –502 kJ/ mol and –270. kJ/ mol, respectively. b. Is this reaction spontaneous under ...ΔG predicts spontaneity for a reaction at constant T and P, whereas ΔGo predicts the equilibrium position. Explain what this statement means. Under what conditions can you use ΔGo to determine the spontaneity of a ...How can one estimate the value of K at temperatures other than 25oC for a reaction? How can one estimate the temperature where K = 1 for a reaction? Do all reactions have a specific temperature where K = 1? Cells use the hydrolysis of adenosine triphosphate, abbreviated ATP, as a source of energy. Symbolically, this reaction can be represented as ATP(aq) + H2O(l) → ADP(aq) + H2PO4-(aq) where ADP represents adenosine ...
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