Long-form Question 1 (write your answers on your piece of paper) Consider the standard molar enthalpy of formation for ammonia: Using the following heat capacities, calculate the standard enthalpy of formation at 700 K. Assume the heat capacities are temperature independent. Show all of your work. Long-form Question 2 (write your answers on your piece of paper) (a) Consider the reversible isothermal compression of one mole of a monatomic ideal gas, . This is the compression along Path A on the diagram above. Use the first and second laws of thermodynamics to derive an expression for the entropy change of the system, , in terms of the initial and final volumes. Show all of your work. (b) Now consider the reversible adiabatic compression of one mole of an ideal gas, , with . This is the compression along Path B on the diagram above. Derive an expression for the final temperature of the gas. Show all of your work. Hint: The First Law is a good place to start! (c) If you begin at 300 K and do the adiabatic compression described in (b) from 20 dm3 to 5 dm3, what is the final temperature of the gas? AFTER pressing submit, take a photo of your answers to the long-form part of this quiz/exam. Enter the corresponding Canvas Assignments and Upload a PDF of the photo of your answers to the long-form questions NO LATER THAN 10 MINUTES after submission of the Honorlock portion. It is expected that (i) you will do your own work on this quiz/exam, (ii) you will not use any materials outside of those given in the exam itself, and (iii) you will not share, disseminate, or post any of this quiz/exam in any location at any time. Any use of outside materials, your phone, or assistance from others is considered academic dishonesty. By answering “I agree” to this question and pressing Submit below, you agree that you have followed all of the instructions for this quiz/exam and satisfied the expectations described above. To earn credit for this quiz/exam, you must follow all instructions and satisfy these expectations (preceding paragraph). Remember that it is your responsibility to NOT share ANY information about this exam until after the testing window closes at 11:59 pm. That includes maintaining security of any written materials that you have created while taking the exam.
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