The enthalpy at 300 K and 1 bar of a binary liquid mixture is H = 400X_{1} 600X_{2} X_{1}*X_{2}(40X_{1} 20X_{2}) Where H is in J/mol. For the stated temperature and pressure, determine the (1) Expression for Hi and H₂ in terms of X (11) Numerical values for the pure component enthalpies H₁ and H_{2} (ii) Numerical values for the partial molar enthalpies at infinite dilutions