Chemistry - Chemical Equilibrium Question with Solution | TestHub
\begin{gathered}\text{At }444^\circ\mathrm C,\ \mathrm{HI}\text{ dissociates to the extent of 22.22% at equilibrium.}\\[8pt]\text{What is the percentage dissociation of HI at 444°C, if the experiment is}\\\text{started with one mole of HI(g) and 1 mole of He(g)?}\end{gathered}
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Solution:
\begin{gathered}{}\text{He}\text{ }\text{is}\text{ }\text{inert}\text{ }\text{and}\text{ }\text{takes}\text{ }\text{no}\text{ }\text{part}\text{ }\text{in}\text{ }\text{the}\text{ }\text{reaction}\text{ }\text{Here}\text{ }\Delta\text{n\_g}\text{ }\text{=}\text{ }\text{0,}\text{ }\text{so}\text{ }\text{K}_{\text{p}}\text{ }\text{=}\text{ }\text{K}_{\text{c}}\text{ }\text{=}\text{ }\text{K}_{\text{x}}\text{ }\\{}\text{and}\text{ }\text{the}\text{ }\text{position}\text{ }\text{of}\text{ }\text{equilibrium}\text{ }\text{does}\text{ }\text{not}\text{ }\text{depend}\text{ }\text{on}\text{ }\text{total}\text{ }\text{pressure}\text{ }\text{or}\text{ }\text{volume}\\{}\text{The}\text{ }\text{mole}\text{ }\text{ratio}\text{ }\text{of}\text{ }\text{HI,}\text{ }\text{H}_{\text{2}}\text{ }\text{and}\text{ }\text{I}_{\text{2}}\text{ }\text{at}\text{ }\text{equilibrium}\text{ }\text{is}\text{ }\text{unchanged}\text{ }\text{by}\text{ }\text{He}\\{}\text{Percentage}\text{ }\text{dissociation}\text{ }\text{stays}\text{ }\text{22.22%}\\{}\text{This}\text{ }\text{is}\text{ }\text{option}\text{ }\text{(c).}\end{gathered}
