Physical Chemistry 2. Solutions and Mixtures

Exercise 4 The dependence of the mixing enthalpy of the benzene (1) - 2.2-dimethylbutane (2) system on the composition at 25C can be approximated by the relation H"/(mol ) = 3630 X1 X3. Based on this relationship, determine the heat associated with the addition of 4 moles of 2.2-dimethylbutane to 6 moles of the mixture under consideration with an initial composition of x1 = 0,5. Justify your access to the solution