Question: Solve any ONE from these two. step by step answer please only hand written accepted Q3 The excess enthalpy ( heat of mixing ) for

 Solve any ONE from these two. step by step answer please

Solve any ONE from these two. step by step answer please only hand written accepted

Q3 The excess enthalpy ( heat of mixing ) for a liquid mixtures 1 and 2 at fixed T and P is expressed as HE = X]X2( 25x1+ 35x2) where H is in J/mol . Determine the expression for : HE and HE in terms of xj. OR For a binary mixture A and B the activity coefficients are related as Inyi= Ax2 and Iny2= Ax? The vapor pressure of A and B at 355k are 120.96kpa and 80.97 kpa resp. Does an azeotrope exist at 353K. if so what is the azeotropic pressure and composition for A=0.6

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