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2.A certain compound undergoes a solid + liquid phase transition at -25.5°C. The entropy change AS,...
8. Use the data in the appendix to calculate the standard entropy change, ASo, for the...
8. Use the data in the appendix to calculate the standard entropy change, ASo, for the combustion of 1 mole of methane, CH4(9) (note: all reactants and products are in the gaseous state. Provide the balanced equation for the combustion) (8 points).
please answer 6a,b,c,d and 7 Search 6. Predict whether the following processes or reactions result in...
please answer 6a,b,c,d and 7
Search 6. Predict whether the following processes or reactions result in an increase or decrease in the entropy of the system (10 points) a) Sucrose(s) → Sucrose(aq) b) H2(g) + '/2O2(g) → H2O(g) c) A balloon at sea level → Same balloon at the top of Mount Everest d) H20(1) ► H2O(s) (i.e. the freezing of water) 7. A certain compound undergoes a solid liquid phase transition at -25.5°C. The entropy change, AS, associated with...
When a system of acetone undergoes a phase change from liquid to vapor, the entropy change...
When a system of acetone undergoes a phase change from liquid to vapor, the entropy change (ΔS) for the system is 95 J/K and it requires 31.3 kJ of energy to be transferred into the system from the surroundings. (CH3)2CO (l) → (CH3)2CO (g) ΔH = 31.3kJ a. Calculate the overall entropy change (ΔSuniverse) for this process at 65.0°C. b. Briefly discuss whether or not this process would be spontaneous or nonspontaneous at this temperature.
answer 13 and 14 please 12. The space shuttle uses the combustion of hydrogen with oxygen...
answer 13 and 14 please
12. The space shuttle uses the combustion of hydrogen with oxygen to power the main rockets. Use the data in the appendix to calculate the standard entropy change, Aso, for the combustion of 1 mole of hydrogen (note: all reactants and products are in the gaseous state). Be sure to provide the balanced equation for the combustion. (10 points). 13. When an ionic solid (like NaCl) dissolves in water the molecules of water separate, surround...
12. The space shuttle uses the combustion of hydrogen with oxygen to power the main rockets....
12. The space shuttle uses the combustion of hydrogen with oxygen to power the main rockets. Use the data in the appendix to calculate the standard entropy change, Aso, for the combustion of 1 mole of hydrogen (note: all reactants and products are in the gaseous state). Be sure to provide the balanced equation for the combustion. (10 points). 13. When an ionic solid (like NaCl) dissolves in water the molecules of water separate, surround and disperse the Nat and...
10. The value of AGº for the Haber reaction, 3H2(g) + N2(g) → 2NH3(g), at 25°C...
10. The value of AGº for the Haber reaction, 3H2(g) + N2(g) → 2NH3(g), at 25°C is -32.3 kJ mor! Answer the following: a) Determine the value of Keq for the reaction at 25°C (4 points) b) The value of AH° is-92.2 kJ mor' and the value of AS is -201 J mor' K'Assuming the values of AH° and Asº do not change with temperature, determine agº for the reaction at 475°C. (4 points) c) Determine the value of Key...
Entropy and Solid Phase Change It is quite common for a solid to change from one...
Entropy and Solid Phase Change It is quite common for a solid to change from one solid state structure to another at a temperature below its melting point. For example, sulfur undergoes a phase change from the a-orthorhombic form (Sg; density=2.07 g/cm3) to the B-monoclinic form (Sg; density=2.00 g/cm3) as it is warmed above 95.3 °C. Assuming that AH for this phase change is 0.310 kJ/mol, calculate AS for this phase change. Submit Answer Tries 0/5
please answer 9a,b,c,d 9. For the following reactions, predict whether they will tend to be spontaneous...
please answer 9a,b,c,d
9. For the following reactions, predict whether they will tend to be spontaneous at high, low, ali temperatures, or non-spontaneous at any temperature (10 points) a) 2A(g) + 3B(9) C(g) + D(1), AH < 0 b) A() + B() (1) + D(s) AH > 0 c) A(s) + B(1) ► 20(1), AH < 0 d) 2A(s) B(s) + C(I), AH > 0
CHANGES IN ENTROPY OF UNIVERSE VS SYSTEM. Evaluating Spontaneity Considering both Entropy and Enthalpy 7. In...
CHANGES IN ENTROPY OF UNIVERSE VS SYSTEM. Evaluating Spontaneity Considering both Entropy and Enthalpy 7. In a spontaneous process, which of the following always increases? a. the entropy of the system b. the entropy of the surroundings c. the entropy of the universe d. the entropy of the system and the universe c. the entropy of the system, surroundings and the universe (Hand S refer to the system), a. AH>0 8. Processes are always spontaneous, regardless of temperature, when and...
Entropy/Enthalpy Questions 2. Consider the reaction: 2 BsHo (I)+ 12 O: (8) (a) Use the standard...
Entropy/Enthalpy Questions
2. Consider the reaction: 2 BsHo (I)+ 12 O: (8) (a) Use the standard enthalpies of formation found in Appendix B of the textbook to calculate the enthalpy change of the reaction. The standard enthalpy of formation of BsH, () is 73.2 kl/mol. 5 B0, (s) + 9 HiO () s(-1272) 9-235.84)-273.2)-2(0) [-8932.56-146.47 40 78.46 (b) Predict the sign of the entropy change and provide the two reasons likely to have made the biggest impact on the entropy...
8. Use the data in the appendix to calculate the standard entropy change, ASo, for the combustion of 1 mole of methane, CH4(9) (note: all reactants and products are in the gaseous state. Provide the balanced equation for the combustion) (8 points).
please answer 6a,b,c,d and 7
Search 6. Predict whether the following processes or reactions result in an increase or decrease in the entropy of the system (10 points) a) Sucrose(s) → Sucrose(aq) b) H2(g) + '/2O2(g) → H2O(g) c) A balloon at sea level → Same balloon at the top of Mount Everest d) H20(1) ► H2O(s) (i.e. the freezing of water) 7. A certain compound undergoes a solid liquid phase transition at -25.5°C. The entropy change, AS, associated with...
answer 13 and 14 please
12. The space shuttle uses the combustion of hydrogen with oxygen to power the main rockets. Use the data in the appendix to calculate the standard entropy change, Aso, for the combustion of 1 mole of hydrogen (note: all reactants and products are in the gaseous state). Be sure to provide the balanced equation for the combustion. (10 points). 13. When an ionic solid (like NaCl) dissolves in water the molecules of water separate, surround...
12. The space shuttle uses the combustion of hydrogen with oxygen to power the main rockets. Use the data in the appendix to calculate the standard entropy change, Aso, for the combustion of 1 mole of hydrogen (note: all reactants and products are in the gaseous state). Be sure to provide the balanced equation for the combustion. (10 points). 13. When an ionic solid (like NaCl) dissolves in water the molecules of water separate, surround and disperse the Nat and...
10. The value of AGº for the Haber reaction, 3H2(g) + N2(g) → 2NH3(g), at 25°C is -32.3 kJ mor! Answer the following: a) Determine the value of Keq for the reaction at 25°C (4 points) b) The value of AH° is-92.2 kJ mor' and the value of AS is -201 J mor' K'Assuming the values of AH° and Asº do not change with temperature, determine agº for the reaction at 475°C. (4 points) c) Determine the value of Key...
Entropy and Solid Phase Change It is quite common for a solid to change from one solid state structure to another at a temperature below its melting point. For example, sulfur undergoes a phase change from the a-orthorhombic form (Sg; density=2.07 g/cm3) to the B-monoclinic form (Sg; density=2.00 g/cm3) as it is warmed above 95.3 °C. Assuming that AH for this phase change is 0.310 kJ/mol, calculate AS for this phase change. Submit Answer Tries 0/5
please answer 9a,b,c,d
9. For the following reactions, predict whether they will tend to be spontaneous at high, low, ali temperatures, or non-spontaneous at any temperature (10 points) a) 2A(g) + 3B(9) C(g) + D(1), AH < 0 b) A() + B() (1) + D(s) AH > 0 c) A(s) + B(1) ► 20(1), AH < 0 d) 2A(s) B(s) + C(I), AH > 0
CHANGES IN ENTROPY OF UNIVERSE VS SYSTEM. Evaluating Spontaneity Considering both Entropy and Enthalpy 7. In a spontaneous process, which of the following always increases? a. the entropy of the system b. the entropy of the surroundings c. the entropy of the universe d. the entropy of the system and the universe c. the entropy of the system, surroundings and the universe (Hand S refer to the system), a. AH>0 8. Processes are always spontaneous, regardless of temperature, when and...
Entropy/Enthalpy Questions
2. Consider the reaction: 2 BsHo (I)+ 12 O: (8) (a) Use the standard enthalpies of formation found in Appendix B of the textbook to calculate the enthalpy change of the reaction. The standard enthalpy of formation of BsH, () is 73.2 kl/mol. 5 B0, (s) + 9 HiO () s(-1272) 9-235.84)-273.2)-2(0) [-8932.56-146.47 40 78.46 (b) Predict the sign of the entropy change and provide the two reasons likely to have made the biggest impact on the entropy...
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