A gas mixture with x moles of Ne, 4 mol of Ar, and y moles of Xe is prepared at a pressure of 1 bar and a temperature of 298K.The total number of moles in the mixture is three times that of Ar. At what value of x does the magnitude of delta Gmixing have its maximum value? Write down an expression for the delta Gmixing in terms of x. Determine the delta Gmixing for this value of x.