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The authors used 3310 cal./mole2 for the free energy of formation of methane from @-graphite and hydrogen at 950°K. From the log K, vs. 103/T plot at...
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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 ~