Identify whether each process is spontaneous or non-spontaneous. 1. Silverwares tarnish when exposed to air. 2. Table salt dissociates into sodium and chlorine ions in water. 3. Water molecules form from hydrogen and oxygen gases. Determine whether the change in entropy increases or decreases. Number 1 serves as an example. increase (L-G) 4. Evaporation 5. Solidification 6. Deposition 7. Fusion 8. Codensation 9. Lowering the temperature of ethyl alcohol from 30°C to 10° 10. Sublimation of dry ice: CO2 (s) CO2 (g) 11. Na+(aq) +Cl-(aq)· 12. Formation of CO2 and H20 through the reaction below: » Naci (s) C3Ha(g) + 502(g) » 3CO2(g) + 4H20 (1) 13. Sublimation of naphthalene balls as represented by this equation: C10He(s) → C1OH8(g) 14. Formation of H20 from from H2 and O2 2H2(g) +O2(g) 15. Combustion of ethane (C2H6) gas: 2C2H6(g) +702(g) 2H20(1) 4CO2(g) + 6H;O(g)

Identify whether each process is spontaneous or non-spontaneous. 1. Silverwares tarnish when exposed to air. 2. Table salt dissociates into sodium and chlorine ions in water. 3. Water molecules form from hydrogen and oxygen gases. Determine whether the change in entropy increases or decreases. Number 1 serves as an example. increase (L-G) 4. Evaporation 5. Solidification 6. Deposition 7. Fusion 8. Codensation 9. Lowering the temperature of ethyl alcohol from 30°C to 10° 10. Sublimation of dry ice: CO2 (s) CO2 (g) 11. Na+(aq) +Cl-(aq)· 12. Formation of CO2 and H20 through the reaction below: » Naci (s) C3Ha(g) + 502(g) » 3CO2(g) + 4H20 (1) 13. Sublimation of naphthalene balls as represented by this equation: C10He(s) → C1OH8(g) 14. Formation of H20 from from H2 and O2 2H2(g) +O2(g) 15. Combustion of ethane (C2H6) gas: 2C2H6(g) +702(g) 2H20(1) 4CO2(g) + 6H;O(g)

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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Question

Identify whether each process is spontaneous or non-spontaneous.
1. Silverwares tarnish when exposed to air.
2. Table salt dissociates into sodium and chlorine ions in water.
3. Water molecules form from hydrogen and oxygen gases.
Determine whether the change in entropy increases or decreases. Number 1 serves as an example.
increase (L-G).
4. Evaporation
5. Solidification
6. Deposition
7. Fusion
8. Codensation
9. Lowering the temperature of ethyl alcohol from 30°C to 10°
10. Sublimation of dry ice: CO2 (s).
11. Na+(aq) +Cl-(aq) -
12. Formation of CO2 and H20 through the reaction below:
CO2 (g)
NaCI (s)
C3Ha(g) + 502(g)
→3CO2(g) + 4H2O (I)
13. Sublimation of naphthalene balls as represented by this equation:
→ C10Ha(g)
C1oHe(s)
14. Formation of H20 from from H2 and O2
2H2(g) +O2(g)
15. Combustion of ethane (C2H6) gas: 2C2H6(g) +702(g)
2H20(1)
4CO2(g) + 6H;0(g)

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