1. What is an advantage of using the Redlich-Kwong equation of state in the generalized form given by Eq. 11.9 instead of Eq. 11.7? A disadvantage?

2. To determine the  specific  volume  of  superheated  water  vapor at a known pressure and temperature, when would you use each of the following: the steam tables, the generalized compressibility chart, an equation of state, the ideal gas model?

3. If the function p 5 p(T, y) is an equation of state, is 10p/ 0T2y a property? What are the independent variables of 10p/ 0T2y?

4. In the expression 10u/ 0T2y, what does the subscript y signify?

5. Explain how a Mollier diagram provides a graphical representation of the fundamental function h(s, p).

6. How is the Clapeyron equation used?

7. For a gas whose equation of state is py 5 RT, are the specific heats cp and cy necessarily functions of temperature alone?

8. Referring to the phase diagram for water, explain why ice melts under the blade of an ice skate.