The Ostwald process for the commercial production of nitric acid involves three steps.4 NH3(g) + 5 02(9) 4 NO(g) + 6 H20(g)2 NO(g) + 02(g) → 2 NO2(g)3 NO2(g) + H20(1) → 2 HNO3(/) + NO(g)(a) Calculate AH°, AS°, AG°, and K (at 298 K) for each of the three steps in the Ostwald process (see Appendix 4). (Use the values you calculate for AH° and AS° to calculate AG°.)first stepsecond stepthird stepAH° -908V kJΔΗ-112V kJAH° -74kJAS°181V J/KAS°-147V J/KAS°|-267V J/KAG°-928V kJAG°-70V kJAG° 6x kJK0.11K1.03K0.089(b) Calculate the equilibrium constant for the first step at 825°C, assuming AH° and AS° do not depend on temperature.41.45(c) Is there a thermodynamic reason for the high temperature in the first step assuming standard conditions?O YesO NoExplain.> > > x

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The Ostwald process for the commercial production of nitric acid involves three steps. 4 NH3(9) + 5 02(9) 4 NO(9) + 6 H20(9) 2 NO(g) + O2(g) → 2 NO2(9) 3 NO2(9) + H2O() → 2 HNO3(/) + NO(g) (a) Calculate AH°, ASº, AG°, and K (at 298 K) for each of the three steps in the Ostwald process (see Appendix 4). (Use the values you calculate for AH° and AS° to calculate AG°.) first step second step third step AH -908 v k) дне -112 v kJ AH -74 v kJ AS° 181 V J/K AS -147 V J/K As. -267 v J/K AG° -928 V kJ AG -70 V k) AG° 6 × k] K 0.11 K 1.03 K 0.089 > > > x

The Ostwald process for the commercial production of nitric acid involves three steps. 4 NH3(9) + 5 02(9) 4 NO(9) + 6 H20(9) 2 NO(g) + O2(g) → 2 NO2(9) 3 NO2(9) + H2O() → 2 HNO3(/) + NO(g) (a) Calculate AH°, ASº, AG°, and K (at 298 K) for each of the three steps in the Ostwald process (see Appendix 4). (Use the values you calculate for AH° and AS° to calculate AG°.) first step second step third step AH -908 v k) дне -112 v kJ AH -74 v kJ AS° 181 V J/K AS -147 V J/K As. -267 v J/K AG° -928 V kJ AG -70 V k) AG° 6 × k] K 0.11 K 1.03 K 0.089 > > > x

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Concept explainers

Potentiometric Titrations

Potentiometric titration is one of the important titration methods and is mainly carried out to characterize acid solutions. It follows a method similar to that of the normal titration technique, but the main difference is that there is no indicator used in the potentiometric titrations. Instead of using an indicator, electrodes are employed for monitoring the whole titration process. A scientist named Robert Behrend did the potentiometric titration for the first time, and it was done using the mercurous solution and potassium chloride.

Question

The Ostwald process for the commercial production of nitric acid involves three steps.
4 NH3(g) + 5 02(9) 4 NO(g) + 6 H20(g)
2 NO(g) + 02(g) → 2 NO2(g)
3 NO2(g) + H20(1) → 2 HNO3(/) + NO(g)
(a) Calculate AH°, AS°, AG°, and K (at 298 K) for each of the three steps in the Ostwald process (see Appendix 4). (Use the values you calculate for AH° and AS° to calculate AG°.)
first step
second step
third step
AH° -908
V kJ
ΔΗ
-112
V kJ
AH° -74
kJ
AS°
181
V J/K
AS°
-147
V J/K
AS°
|-267
V J/K
AG°
-928
V kJ
AG°
-70
V kJ
AG° 6
x kJ
K
0.11
K
1.03
K
0.089
(b) Calculate the equilibrium constant for the first step at 825°C, assuming AH° and AS° do not depend on temperature.
41.45
(c) Is there a thermodynamic reason for the high temperature in the first step assuming standard conditions?
O Yes
O No
Explain.
> > > x

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