Solid NH_(4)I on rapid heating in a closed vessel at 357^(@)C dvelops a constant pressure of 275 mm Hg owing to partial decomposition of NH_(4)I into NH_(3) and HI but the pressure gradually increases further (when the excess solid residue remains in the vessel) owing to the dissociation of HI. Calculate the final pressure developed at equilibrium. K_(p) for HI dissociation is 0.015 at 357^(@)C.

Solid NH_(4)I on rapid heating in a closed vessel at 357^(@)C dvelops

1.	Solid NH_(4)I on rapid heating in a closed vessel at 357^(@)C dvelops a constant pressure of 275 mm Hg owing to partial decomposition of NH_(4)I into NH_(3) and HI but the pressure gradually increases further (when the excess solid residue remains in the vessel) owing to the dissociation of HI. Calculate the final pressure developed at equilibrium. K_(p) for HI dissociation is 0.015 at 357^(@)C.
Answer» SOLUTION :`307.46 MM`,