The molar volume (cm^3/mol) of a binary liquid mixture at T and P is given by V = 120x1+70x2+(15x1+8x2)*x1*x2
A) find expressions for the partial molar volumes of species one and two at T and P
B) Show that when these expressions are combined in accord with M = sum (xi*Mbar i) the given equation for V is recovered
C) show that these expressions satisfy x1*d*Mbar1 + x2*d*Mbar2 = 0
D) show that (dVbar1/dx1)@x1=1 = (dVbar2/dx1)@x1=0=0