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![Du= DH - TOS for non- spontaneous = Du = tve, so DH 70 oso, But LosLDH then, [TOS LD4 7. then [DH - TOS = tve] I so option (c](http://img.homeworklib.com/questions/81373210-0791-11ec-8acf-33644da7044d.png?x-oss-process=image/resize,w_560)
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QUESTION 1 Which combination of enthalpy and entropy indicates a...
nupiel 17 Problems 1. Answer the following questions in terms of thermodynamic principles. a. Consider the...
nupiel 17 Problems 1. Answer the following questions in terms of thermodynamic principles. a. Consider the reaction represented below, which is spontaneous at 298 K. CO2(g) + 2 NH3(g) -> CO(NH2)2(s) + H2O(l); AH = -134 kJ i. For the reaction, indicate whether the standard entropy change, AS, is positive, or negative, or zero. Justify your answer. ii. Which factor, the change in enthalpy, AH, or the change in entropy, AS, provides the principal driving force for the reaction at...
3. Entropy a. Rank the following systems in order of increasing entropy. i. 1 mol of Ne (g) at 27...
3. Entropy a. Rank the following systems in order of increasing entropy. i. 1 mol of Ne (g) at 273 K and 20 L ii. 0.5 mol of Ne (g) at 100 K and 20 L ii. 0.5 mol of Ne () at 100 K iv. I mol of CClh (g) at 273 K and 40 L Lowest Entropy: Highest Entropy: The reaction below is the basis of a suggested method for removal of SOs, a pollutant that irritates airways...
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...
1. Consider the three reaction energy diagrams below. Make sure you can justify your answer for...
1. Consider the three reaction energy diagrams below. Make sure you can justify your answer for the purposes of Exam 3 – simply guessing on this multiple choice question will NOT help you when you're asked to explain your reasoning on the exam! energy energy energy reaction coordinate reaction coordinate reaction coordinate i) Which forward reaction do you expect to proceed fastest, assuming the same energy scale for each? ii) Which reaction do you expect to be the most favorable...
1. Consider the three reaction energy diagrams below. Make sure you can justify your answer for...
1. Consider the three reaction energy diagrams below. Make sure you can justify your answer for the purposes of Exam 3 - simply guessing on this multiple choice question will NOT help you when you're asked to explain your reasoning on the exam! energy- energy- reaction coordinate reaction coordinate reaction coordinate i) Which forward reaction do you expect to proceed fastest, assuming the same energy scale for each? ii) Which reaction do you expect to be the most favorable in...
please explain Question 4: Level 3 (U12, L.G. 9) Write the correct molecular equation, complete ionic...
please explain
Question 4: Level 3 (U12, L.G. 9) Write the correct molecular equation, complete ionic equation, and net ionic equation for the reaction that occurs between cobalt(II) chloride and sodium hydroxide. Question 1: Level 1 (Unit 13) Which of the following statements accurately describe a system at equilibrium? I. There are constant amounts of reactant and product. II. There are equal amounts of reactant and product. III. The forward and backward reactions have equal rates. IV. The forward and...
14. Which of the following is not a state function? a. Internal Energy b. Free Energy...
14. Which of the following is not a state function? a. Internal Energy b. Free Energy c. Enthalpy d. Entropy e. Heat 15. The second law of thermodynamics states that a. the entropy of a perfect crystal is zero at 0 K b. the entropy of the universe is constant. c. the energy of the universe is increasing. d. the entropy of the universe is increasing. e. the energy of the universe is constant. 16. Which of the following are...
PART 1 of 3: Consider two ionic compounds that dissolve fully in water at room temperature....
PART 1 of 3: Consider two ionic compounds that dissolve fully in water at room temperature. You an experiment and determine the following: * Compound A has stronger solute-solute attractions than solute-solvent attractions. * Compound B has stronger solute-solvent attractions than solute-solute attractions. Which of the following best describes the ΔH solution for Compound A and Compound B, respectively? ANSWER CHOICES: 1.) Both processes are endothermic, but Compound A is more endothermic 2.) Exothermic, endothermic 3.) Both processes are exothermic,...
rrect Question 11 0/1 pts Which of the following is characteristic of a nuclear reaction? 1....
rrect Question 11 0/1 pts Which of the following is characteristic of a nuclear reaction? 1. Electrons in atomic orbitals are involved in the breaking and forming of bonds II. Elements are converted from one to another III. Reaction rates are typically not affected by catalysts IV. Atoms are rearranged by the breaking and forming of chemical bonds III and IV I, II, III, and IV I, II, and III II and III I and II
Please help! Thank you so much 6. An object can be electroplated with a layer of...
Please help! Thank you so much
6. An object can be electroplated with a layer of solid chromium by submerging it in an aqueous mixture of Croz and H2SO4 and applying a current. a. Write the net ionic equation for the electroplating half-reaction. (5 pts) b. Calculate the time required to electroplate 27.5 g of chromium at a current of 25 A. Express the final answer in hours. (5 Answer: 7. Sulfuric acid is produced through the reaction of sulfur...
nupiel 17 Problems 1. Answer the following questions in terms of thermodynamic principles. a. Consider the reaction represented below, which is spontaneous at 298 K. CO2(g) + 2 NH3(g) -> CO(NH2)2(s) + H2O(l); AH = -134 kJ i. For the reaction, indicate whether the standard entropy change, AS, is positive, or negative, or zero. Justify your answer. ii. Which factor, the change in enthalpy, AH, or the change in entropy, AS, provides the principal driving force for the reaction at...
3. Entropy a. Rank the following systems in order of increasing entropy. i. 1 mol of Ne (g) at 273 K and 20 L ii. 0.5 mol of Ne (g) at 100 K and 20 L ii. 0.5 mol of Ne () at 100 K iv. I mol of CClh (g) at 273 K and 40 L Lowest Entropy: Highest Entropy: The reaction below is the basis of a suggested method for removal of SOs, a pollutant that irritates airways...
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...
1. Consider the three reaction energy diagrams below. Make sure you can justify your answer for the purposes of Exam 3 – simply guessing on this multiple choice question will NOT help you when you're asked to explain your reasoning on the exam! energy energy energy reaction coordinate reaction coordinate reaction coordinate i) Which forward reaction do you expect to proceed fastest, assuming the same energy scale for each? ii) Which reaction do you expect to be the most favorable...
1. Consider the three reaction energy diagrams below. Make sure you can justify your answer for the purposes of Exam 3 - simply guessing on this multiple choice question will NOT help you when you're asked to explain your reasoning on the exam! energy- energy- reaction coordinate reaction coordinate reaction coordinate i) Which forward reaction do you expect to proceed fastest, assuming the same energy scale for each? ii) Which reaction do you expect to be the most favorable in...
please explain
Question 4: Level 3 (U12, L.G. 9) Write the correct molecular equation, complete ionic equation, and net ionic equation for the reaction that occurs between cobalt(II) chloride and sodium hydroxide. Question 1: Level 1 (Unit 13) Which of the following statements accurately describe a system at equilibrium? I. There are constant amounts of reactant and product. II. There are equal amounts of reactant and product. III. The forward and backward reactions have equal rates. IV. The forward and...
14. Which of the following is not a state function? a. Internal Energy b. Free Energy c. Enthalpy d. Entropy e. Heat 15. The second law of thermodynamics states that a. the entropy of a perfect crystal is zero at 0 K b. the entropy of the universe is constant. c. the energy of the universe is increasing. d. the entropy of the universe is increasing. e. the energy of the universe is constant. 16. Which of the following are...
rrect Question 11 0/1 pts Which of the following is characteristic of a nuclear reaction? 1. Electrons in atomic orbitals are involved in the breaking and forming of bonds II. Elements are converted from one to another III. Reaction rates are typically not affected by catalysts IV. Atoms are rearranged by the breaking and forming of chemical bonds III and IV I, II, III, and IV I, II, and III II and III I and II
Please help! Thank you so much
6. An object can be electroplated with a layer of solid chromium by submerging it in an aqueous mixture of Croz and H2SO4 and applying a current. a. Write the net ionic equation for the electroplating half-reaction. (5 pts) b. Calculate the time required to electroplate 27.5 g of chromium at a current of 25 A. Express the final answer in hours. (5 Answer: 7. Sulfuric acid is produced through the reaction of sulfur...
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