The Ostwald process for the commercial production of nitric acid involves three steps: 2NO(g) + O2(g) 2NO2(g)
Question:
2NO(g) + O2(g) 2NO2(g)
3NO2(g) + H2O(l) 2HNO3(l) + NO(g)
a. Calculate ÎHo, ÎSo, ÎGo, and K (at 298 K) for each of the three steps in the Ostwald process (see Appendix 4).
b. Calculate the equilibrium constant for the first step at 825oC. Assume that ÎHo and ÎSo are temperature- independent.
c. Is there a thermodynamic reason for the high temperature in the first step assuming standard conditions?
Transcribed Image Text:
25°C
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a kJmol S J K 1 mol 1 NH 3 g 46 193 O 2 g 0 205 NOg 90 211 H 2 Og 242 189 NO 2 g 34 240 HNO 3 l 174 ...View the full answer
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