The VE, HE, 魏SE, and CPE data have been measured over entire mole fraction at 4 temperatures.
The VE, HE, 魏SE, and CPE data have been fitted to the Redlich–Kister equation.
The observed data have been analyzed in terms of the Graph theory.
The VE, HE, 魏SE, and CPE values predicted by the Graph theory compare well with experimental values.