Consider the following reaction:
2 PCl3(g) + O2(g) 2 POCl3(g)
The enthalpy change at 298 K for this reaction is Horxn = -508.26 kJ/mol.
Under the same conditions the entropy change for the reaction
is Sorxn = -178.4 J/mol-K.
Calculate the value of Keq for this reaction
at 3795 K. Assume that Horxn and Sorxn are the same
at 3795 K as they are at 298 K. Use R = 8.314 J/K for the
value of the gas constant.