Comment
Figure shows only the first heating process. Sulfidation reaction occurs around 470�Ž, gradually proceeds (612�Ž�imax�j), and finish at 650�Ž.
ƒ¢H‚’=829.4J/g.
The enthalpy of formation
�@Product is the hexagonal MoS2. Small amount of unreactive Mo is left.
The enthalpy of formation, ĢHf=54.6Kcal/mol.