Calculate the bubble-point pressure dew- point pressure and

Question

Question 1:

Calculate the bubble-point pressure, dew- point pressure and the compositions at a temperature of 150^o F for the given mixture using two methods

1- Cox-chart method.

2- K-chart method.

Component	Mole fraction
Propane	0.61
n-Butane	0.28
n-Pentane	0.11

1- Bubble and dew pressures by Cox chart

2-Bubble and dew pressures by K-chart

3- compositions at bubble pressure

Question 2:

Assuming real gas behaviour, at 8MP a.g and 150^oc calculate:

Component	Mole fraction
Ethane	0.235
propane	0.408
n-Butane	0.306
carbon dioxide	0.051

a- Gas density in kg/m³

b-Gas viscosity in cP ( using individual gas viscosities)

Question 3:

At which temperature does the following system is equilibrated at a pressure of 400Psi using K charts

Component	Mole fraction (xi)
Propane	0.51
n-Butane	0.28
n-Pentane	0.21