Question

(A) Does the equilibrium mixture contain products, reactants, both or none?

(A1) 2O₃(g) ⇌  3O₂(g)     K = 5.9 x 10¹²

(A2) H₂(g) + I₂(g) ⇌ 2HI(g) K = 54

(C) Write the expression for Kc

(C Part 1) PCl₃(l) +Cl₂(g) ⇌ PCl₅(s)

(a) K_c = [PCl₅]/([PCl₃] [Cl₂])

(b) K_c = ([PCl₃] [Cl₂])/[PCl₅]

(c) K_c = 1/([PCl₃] [Cl₂])

(d) K_c = 1/[Cl₂]

(C Part 2) Fe₃O₄(s) + 4H₂(g) ⇌ 3Fe(s) + 4H₂O(g)

(a) Kc = ([Fe]³[H₂O]⁴)/( [Fe₃O₄] [H₂]⁴)

(b) Kc = ([Fe][H₂O]⁴)/( [Fe₃O₄] [H₂]⁴)

(c) Kc = [H₂O]⁴ /  [H₂]⁴

(d) Kc = [H₂O]/  [H₂]

Answer 1

VA LA (^)(0) 20,99 = 30,19), K= 5.98 10 12 If K>/09, produits predominate ones recetauls at A equilibrius. If k is very large, the reaction procece E nearly to completion So equilibrima misture contine Products. E (A2) Helgi + Jugs = HIIg K = 54 . If k is in the range of tos to los lie. / 10 >k>1003 appreciable concentration of both remutants and Products are present. so, equilibrium misture contains both (Reactants, o a hea brothert) ( part) pull +4 19 2 Rus (5) By Cowention the concentration of all pure Solids and pure liquids are taken as unity. ie.,' bolid ] = 1, [liquid) = 1 so uued un * K s t oplim (0)

(partla) fe0418) #44,193 3 Fe(s) + 4 #0692 By convention, the concentration of all pure solids and pure liquids are taken as unity je, . [solid]=1, Eliquid] =1 K = {4,09179 114219373 Option (C)