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In: Chemistry

(a) To get a feel for how ∆mixGm varies with χAB, plot it for the following...

(a) To get a feel for how ∆mixGm varies with χAB, plot it for the following values of χAB = 0, 1, 2, 3 (pick any temperature). (b) Verify that ∆mixGm obtained from the lattice model for a mixture of 2 components has a maximum or a minimum at xA = xB = 1/2 for any value of χAB. (c) Discuss how the second derivative of the free energy of mixing with respect to the mole fraction of one of the component (d2∆mixGm/dx2A) varies with χAB when xA = 1/2.

Solutions

Expert Solution

b) The derivative d(?mixGm)/dXA = 0, is satisfied for XA= 1/2
And so it is shown that the XA = 0 point there is a maximum or minimum.

Also in the data table generated can be observed that XA = 0.5, the highest values obtained ?mixGm

queen_honey_blossom answered 2 years ago
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