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1. The second law of thermodynamics states that A. in a spontaneous process, the entropy of the universe incre B. there is no disorder in a perfect crystal at 0 K. C. the total energy of the universe is always increasing.

1. The second law of thermodynamics states that A. in a spontaneous process, the entropy of the universe incre B. there is no disorder in a perfect crystal at 0 K. C. the total energy of the universe is always increasing.

Chemistry for Engineering Students
Chemistry for Engineering Students
4th Edition
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Lawrence S. Brown, Tom Holme
Chapter10: Entropy And The Second Law Of Thermodynamics
Section: Chapter Questions
Problem 10.69PAE: 10.69 If a sample of air were separated into nitrogen and oxygen molecules (ignoring other gases...
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1. The second law of thermodynamics states that A. in a spontaneous process, the entropy of the universe increases. B. there is no disorder in a perfect crystal at OK. C. the total energy of the universe is always increasing. D. the total energy of the universe is constant. E. mass and energy are conserved in all chemical reactions. 2. Which response includes all the following processes that are accompanied by an increase in entropy? 1. I: (s) – I2 (g) 2. 21 (g) – I:(g) 3. 2NH (g) - N:(g) +3 H:(g) 4. Mg (aq) + 2 OH (aq) – Mg(OH):(s) A. 1,2 В. 1,3 С. 3,4 D. 3 E. 2,4 3. In the following chemical equation indicate the reactant that is a Bronsted-Lowry acid: HCN(ag) + H20(1) = H30+(ag) + CN-(ag) A. HCN B. H2O C.H.O* D. CN E. None of the choices are correct. 4. Which of the following statements regarding the spontaneity of chemical and physical changes is correct? A. A reaction may be spontaneous only in one direction B. A process can sometimes be spontaneous in the direction that moves it away from equilibrium. C. Endothermic processes are never spontaneous. D. A reactant favored process cannot be spontaneous. E. Spontaneous changes occur only in the direction that leads to equilibrium. 5. The principal quantum number for the 3 outermost electrons in Se are A. 3, 3 and 3. B. 4, 4 and 3. C. 4, 4 and 4. D. 3, 3, and 4. E. 4, 4, and 5.
Transcribed Image Text:1. The second law of thermodynamics states that A. in a spontaneous process, the entropy of the universe increases. B. there is no disorder in a perfect crystal at OK. C. the total energy of the universe is always increasing. D. the total energy of the universe is constant. E. mass and energy are conserved in all chemical reactions. 2. Which response includes all the following processes that are accompanied by an increase in entropy? 1. I: (s) – I2 (g) 2. 21 (g) – I:(g) 3. 2NH (g) - N:(g) +3 H:(g) 4. Mg (aq) + 2 OH (aq) – Mg(OH):(s) A. 1,2 В. 1,3 С. 3,4 D. 3 E. 2,4 3. In the following chemical equation indicate the reactant that is a Bronsted-Lowry acid: HCN(ag) + H20(1) = H30+(ag) + CN-(ag) A. HCN B. H2O C.H.O* D. CN E. None of the choices are correct. 4. Which of the following statements regarding the spontaneity of chemical and physical changes is correct? A. A reaction may be spontaneous only in one direction B. A process can sometimes be spontaneous in the direction that moves it away from equilibrium. C. Endothermic processes are never spontaneous. D. A reactant favored process cannot be spontaneous. E. Spontaneous changes occur only in the direction that leads to equilibrium. 5. The principal quantum number for the 3 outermost electrons in Se are A. 3, 3 and 3. B. 4, 4 and 3. C. 4, 4 and 4. D. 3, 3, and 4. E. 4, 4, and 5.
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