Thermodynamic Parameters of Molybdates and Tungstates

Thermodynamic Parameters of Molybdates and Tungstates. The enthalpies of evaporation of Na2Mo04 and have been calculated to be 276.6  

1 on 290.4 7.5kJmol respectively. Solution calorimetric measurements on CS2M02O, have given the enthalpy of reaction at 298.15 K for the process 

The standard enthalpies of formation of K2Mo 03,., (n = 1—4) have been calculated to be -1500.0 0.8, -2292.8 1.7, -3043.0 2.5, and -3820.4 2.5kJmol respectively, from which a linear extrapolation gives estimates for potassium hexa- and octa-molybdates of 5314 and 6611 kJ mol respectively. A mass spectrometric investigation of the B2O3-WO3 system has lead to a W—O bond energy of 611 42 kJ mol for Calorimetric measurements were made 

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