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1. Consider the cooling of an ideal gas in a closed system. This process is illustrated in the pressure–volume graph shown in the following figure.
Based on this information, the process may be:
2. A reaction has a positive entropy and enthalpy. What can be inferred about the progress of this reaction from this information?
3. Pure sodium metal spontaneously combusts upon contact with room temperature water. What is true about the equilibrium constant of this combustion reaction at 25°C?
4. Which of the following processes has the most exothermic standard heat of combustion?
5. Methanol reacts with acetic acid to form methyl acetate and water.
Based on the values in the table above, what is the heat of formation of methyl acetate in
6. At standard temperature and pressure, a chemical process is at equilibrium. What is the free energy of reaction (ΔG) for this process?
7. For a certain chemical process, What is the equilibrium constant Keq for this reaction? (Note: )
8. Consider the chemical reaction in the vessel depicted in the following diagram.
9. Suppose for a chemical reaction. At 300 K, what is the change in Gibbs free energy in
10. A chemical reaction has a negative enthalpy and a negative entropy. Which of the following terms necessarily describes this reaction?
11. Which of the following statements is true of process that is spontaneous in the forward direction?
12. Which of the following devices would be the most appropriate to use to measure the heat capacity of a liquid?
13. A reaction coordinate for a chemical reaction is displayed in the graph below.
Which of the following terms describes the energy of this reaction?
14. Which of the following phase changes is associated with the largest decrease in entropy?
15. Explosions are necessarily characterized by:
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