5. To improve air quality and obtained a useful product, chemist often remove sulphur from coal and natural gas by treating the contaminant hydrogen sulphide with oxygen: 2H2S(g) + 02(g) = 25(s) + 2H20(g) Given the standard Gibbs free energy of formation in table 1 Species A,G° /kJ mol·1 H2S (g) -33.56 O2 (g) S (s) H20 (g) -228.57 Table 1 If reaction quotient (Q) = 0.1, total pressure is 1 bar Do you expect the above reaction to be spontaneous? In answer use a free energy versus reaction progress (label the portions that relate to A,G° and AG).

5. To improve air quality and obtained a useful product, chemist often remove sulphur from coal and natural gas by treating the contaminant hydrogen sulphide with oxygen: 2H2S(g) + 02(g) = 25(s) + 2H20(g) Given the standard Gibbs free energy of formation in table 1 Species A,G° /kJ mol·1 H2S (g) -33.56 O2 (g) S (s) H20 (g) -228.57 Table 1 If reaction quotient (Q) = 0.1, total pressure is 1 bar Do you expect the above reaction to be spontaneous? In answer use a free energy versus reaction progress (label the portions that relate to A,G° and AG).

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter16: Thermodynamics: Directionality Of Chemical Reactions

Section: Chapter Questions

Problem 121QRT

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