Chemistry - Surface Chemistry Question with Solution | TestHub

$\mathrm{A}{\mathrm{s}}_2{\mathrm{O}}_3+3{\mathrm{H}}_2\mathrm{S}\to \underset{\left(\mathrm{s}\mathrm{o}\mathrm{l}\right)}{\mathrm{A}{\mathrm{s}}_2{\mathrm{S}}_3}+3{\mathrm{H}}_2\mathrm{O}$
${\mathrm{H}}_2\mathrm{S}$molecules get adsorbed on$\mathrm{A}{\mathrm{s}}_2{\mathrm{S}}_3$sol particles. Enthalpy of adsorption dissociates${\mathrm{H}}_2\mathrm{S}$to form${\mathrm{H}}^{+}$and${\mathrm{S}}^{2-}$.${\mathrm{H}}^{+}$ions are lost and${\mathrm{S}}^{2-}$ions remain adsorbed on the surface sol particles.