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Heat, Work & Energy Chapter Exam

Exam Instructions:

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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Question 1 1. Different types of energy can be categorized as either kinetic or potential.

Question 2 2. To which of the following variables is kinetic energy proportional?

Question 3 3. Which of the following is the Gibbs Free Energy equation?

Question 4 4. If the forward reaction is spontaneous, the reverse reaction is always __?

Question 5 5. A(n) _____ reaction absorbs heat from the surroundings, while an _____ reaction results in heat flowing out of the system.

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Question 6 6. Which statement is correct about heat?

Question 7 7. What can we say about the value of the Helmholtz Free Energy for a system in thermodynamic equilibrium?

Question 8 8. Which of the following examples describes a system in thermal equilibrium?

Question 9 9. If you were to expand a donut-shaped object, what would happen to the size of the hole in the object?

Question 10 10. Which of the following is not a direct factor in the rate of heat transfer by conduction through a slab of material?

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Question 11 11. How much work is done when you hold a 10 N object 10 m above the ground?

Question 12 12. If you double the force on an object but the distance remains the same, how much work is done on that object?

Question 13 13. Which produces more work from the same amount of heat given off in the same piston, an irreversible or a reversible system? Why?

Question 14 14. Which of the following equations would you use for irreversible work?

Question 15 15. Why is potential energy called stored energy?

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Question 16 16. Which of the following is NOT true about the work-energy theorem?

Question 17 17. Why is work a path function?

Question 18 18. Which of the following is NOT a state function?

Question 19 19. Which of the following is TRUE of a thermochemical equation?

Question 20 20.

2Ba(s) + O2(g) = 2BaO(s) deltaH = -1107.0 kJ

Ba(s) + CO2(g) + ½O2(g) = BaCO3(s) deltaH = - 822.5 kJ

Given the data above, calculate delta H for the following reaction:

BaCO3(s) = BaO(s) + CO2(g)

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Question 21 21. Which of the following is a property of energy?

Question 22 22. Which of the following is the best definition for energy?

Question 23 23. Which of the following is the best definition of entropy?

Question 24 24. Which of the following is the best definition of energy?

Question 25 25. What is entropy a measure of?

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Question 26 26. What is the entropy of an ideal crystal at absolute zero, according to the 3rd law of thermodynamics?

Question 27 27. Does the Law of Energy Conservation apply to machines?

Question 28 28. Which of the following does NOT apply to the First Law of Thermodynamics?

Question 29 29. Which of the following is an example of potential energy and not kinetic energy?

Question 30 30. Why is an exothermic reaction generally considered thermodynamically favorable?

Heat, Work & Energy Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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