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free energy change a t 950°K. to be - 12,172 cal./ mole for reaction (1) and -S69 cal./mole for reaction (2). From these values, they further calculated free energies a t 950 OK. for the reactions Mo f C (&graphite) = MoC
A F O ~ M ~=K .
-3,211 cal./niole ~ ~-8,862cal./mole 2Mo f C = Mo2C A F o e s o = MoC f Mo = MozC A F o O M 0 ~