4 2 points Which of the following statements about the compr

4. (2 points) Which of the following statements about the compressibility factor is FALSE? (Select the best response.)

a) All gases have the same compressibility factor at the same reduced temperature and pressure.

b) The value of the compressibility factor will be greatest near the critical point.

c) The conditions P<<Pcr and T>>Tcr must both be met in order omit the compressibility factor from the ideal gas equation.

d) Using the Generalized Compressibility Chart is not generally considered enjoyable or accurate.

Solution

All the statements are true except a as the principle of corresponding states indicates that any pure gas at the same reduced temperature, Tr, and reduced pressure, Pr should have the same compressibility factor.The pressure-volume-temperature (PVT) data for real gases varies from one pure gas to another. However, when the compressibility factors of various single-component gases are graphed versus pressure along with temperature isotherms many of the graphs exhibit similar isotherm shapes.