For cyclohexane at 442.9 K and 50 bar:
A) Calculate a good estimate of the molar volume. Explain why you chose the method you did.
B) Calculate the molar volume of cyclohexane at the same conditions using the ideal gas method. Explain why ideal gas is better than, worse than, or similar to the method you chose in part A.
A) The Lee-Kesler method can be used because the critical temperature and pressure and acentric factor are all known. A cubic equation of state could also be a reasonable choice.
B)Using the Ideal Gas equation:
The Ideal Gas Method is not a good model for this fluid because it is at a high pressure. Ideal Gas is only a good model for gases at low pressures where “no intermolecular interactions” and “particles have negligible volume” are reasonable models.
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