5. Estimate the standard enthalpy of formation of WC tu

5. Estimate the standard enthalpy of formation of WC tu

5. Estimate the standard enthalpy of formation of WC tungsten carbide (TV) based on the following data:
C (g) + O2 = CO2 (g) ΔН298 = -393.32 kJ / mol;
WC (tv) + 5 / 2O2 = WO (tv) + CO2 (g) ΔН298 = -1195.22 kJ / mol;
W (tv) + 3 / 2O2 (g) = WO3 (tv) ΔН298 = -837.24 kJ / mol.

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