Question: 2. (36 points) Phase equilibrium: Using the Clausius-Clapeyron equation Saturated liquid water at T = 55C has a vapor pressure of Psat = 15.763

2. (36 points) Phase equilibrium: Using the Clausius-Clapeyron equation Saturated liquid water at T = 55C has a vapor pressure of Psat = 15.763 kPa. The heat (or enthalpy) of vaporization at this state is hfg (or AHvap) = 2369.8 kJ/kg. a. Using only the given information, estimate the vapor pressures of water at: a) T = 60C, b) T = 75C, c) T = 100C, and d) T = 170C. b. Compare the estimates obtained in part (a) with the data in the steam tables by calculating the % error (absolute value). The data in the steam tables are the true values. Is there a trend with the % error? Give a possible reason for this observation.

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