Ammonia and graphite interaction
Ammonia and graphite interaction
(OP)
Does anyone know what is the interaction between ammonia and graphite at 800-1200 C under 100-400 torr?
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Ammonia and graphite interaction
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RE: Ammonia and graphite interaction
4 NH3 + 3 C(gr.) --> 2 N2 + 3 CH4 delta GRxn,298K = -20.6 kcal/mol
As there is an increase in gas volume associated with this rxn., it should be favored by the reduced pressure.
RE: Ammonia and graphite interaction
<nbucska@pcperipherals.com>
RE: Ammonia and graphite interaction
Take a look at the thermo data for 25o in Perry's, 6th Edn. p. 3-149. I don't believe that the increase in T will make a qualitative change. Most of the CxNyHz compounds will thermally decompose, especially with a solid surface to catalyze the reaction.
RE: Ammonia and graphite interaction
RE: Ammonia and graphite interaction
4 NH3 + 3 C(gr.) --> 2 N2 + 3 CH4 delta GRxn,298K = -20.6 kcal/mol
The graphite as it looses methane it become more porous and began to collapse.