Problem 10.13: Use the SRK equation to compute a Txy graph for the system carbon dioxide (1)/normal pentane at 25 bar. Assume that k12 = 0.12 and independent of temperature.
a) Plot the Txy graph.
b) A saturated vapor-liquid stream at 25 bar with the overall composition z1 = 0.5 contains 50% vapor. What are the compositions of the two phases?
c) The stream passes through a heat exchanger where it is heated until the dew point is reached. What is the temperature?
d) How much heat is exchanged in the previous step?