Answer the following statement(s) true (T) or false (F)
A. The principle of corresponding states can be used to estimate molar volumes for both liquids and vapors.
B. If the critical temperature and critical pressure of a compound are known, its molar volume at any temperature and pressure can be calculated using the Lee-Kesler method, even if no other data is available for the compound.
C. The compressibility factor Z is equal to 1 for all gases, by definition.
D. All of the above are true.
E. None of the above are true.
A. Correct. Figures 7-14, 7-16 and 7-18, for example, all contain distinct liquid and vapor regions.
B. Incorrect. The Lee-Kesler method also requires the acentric factor for the compound, or equivalently, the vapor pressure of the compound at a reduced temperature of 0.7.
C. Incorrect. The compressibility factor is equal to 1 for all IDEAL gases, by definition.
D. Incorrect. At least one is provably false.
E. Incorrect. At least one is a true statement.
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N2 gas fills a flexible container with an initial volume of 0.05 m3, a temperature of 30oC, and a pressure of 800 kPa. The N2 gas is to expand in an isothermal manner until the pressure is 100 kPa.
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Indicate whether the statement is true or false