Model water using the van der Waals equation of state with a = 5.53 × 10⁶ bar · cm⁶/mol² and b = 30.48 cm³/mol (The values of the van der Waals a and b were determined using the method illustrated in Example 7-4).

A. Make a graph of P vs. V ˆ for water at T = 100°C. Use the data from the steam tables.

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B. Using the van der Waals equation of state, plot a graph of P versus V for water, holding temperature constant at T = 100°C. Compare this to the data from part A and comment on the quality of the predictions produced by the van der Waals equation. C. Repeat parts A and B for temperatures of 200°C, 300°C, 400°C, and 500°C. When you compare the five temperatures to each other, what differences in behavior do you notice, for both the real data and the equation of state?