Question 1 (40 marks)

Determine Z and V for steam at 250 °C and 1800 kPa by the following

a)

The ideal gas equation.

b) The generalized compressibility-factor correlation.

c)

d)

The Pitzer method with tabulated Z & Z¹ from Lee-Kesler correlation Appendix D.

The truncated virial equation with the following experimental values of virial

coefficients: B = -152.5 cm³ mol¹; C = -5800 cm mol-².

e)

f)

The truncated virial equation, with a value of B from the generalized Pitzer correlation.

The steam tables.