The synthesis of solid lead (II) sulfide can be expressed in the equation Pb(s) + S(s) → PbS(s) AH° = - 98.7 kJ/mole Pb(s) → Pb(g) AH° (1) Pb(g) → Pb*(g) + 2 e1 Дн (2) S(s) → S(g) AH° (3) S(g) + 2 e → S(g) AH° (4) Pb (g) + s (g) → PbS(s) Дн (5) 17. Which statement about this reaction as temperature is increased is most reasonable? (A) This reaction will always be thermodynamically favored because the entropy change is expected to be positive. (B) This reaction will become thermodynamically favored because the entropy change is expected to be positive. (C) This reaction will become thermodynamically unfavored because the entropy change is expected to be negative. (D) This reaction will always be thermodynamically unfavored because the entropy change is expected to be positive.

The synthesis of solid lead (II) sulfide can be expressed in the equation Pb(s) + S(s) → PbS(s) AH° = - 98.7 kJ/mole Pb(s) → Pb(g) AH° (1) Pb(g) → Pb*(g) + 2 e1 Дн (2) S(s) → S(g) AH° (3) S(g) + 2 e → S(g) AH° (4) Pb (g) + s (g) → PbS(s) Дн (5) 17. Which statement about this reaction as temperature is increased is most reasonable? (A) This reaction will always be thermodynamically favored because the entropy change is expected to be positive. (B) This reaction will become thermodynamically favored because the entropy change is expected to be positive. (C) This reaction will become thermodynamically unfavored because the entropy change is expected to be negative. (D) This reaction will always be thermodynamically unfavored because the entropy change is expected to be positive.

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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