Question

Question 30 3 pts How would the reaction respond if some PtO is removed from the reaction mixture at equilibrium? CS2(g) + 2H2O(g) + Pt(s) = C(s) + 2H2S(g) + PtO(s) ΔΗχη = -55 kJ The reaction would make reactants to reach a new equilibrium. The equilibrium position of the reaction would not be affected. The reaction would make products to reach a new equilibrium, D Question 31 3 pts The temperature of the reaction below is increased and once the reaction reaches equilibrium, the equilibrium concentration of CO is found to be 8.44 x 10-6 M. Is this reaction endothermic or exothermic? CO(g) + Clale) = COC12(e) exothermic because the reaction shifted to the reactant side endothermic because the reaction shifted to the reactant side exothermic because the reaction shifted to the product side O endothermic because the reaction shifted to the product side

Answer 1

2 KE 2 a CS2 anzo apk → K= [H25] 2 Question 26 The given equilibrium in C5218)+2420(8) +P+(s) = C(s) + 2H25(%) + PŁO(s) Shrani-55KJ from the given equilibrium it is evident that pto is product and it is pure solid. The activity of pure solid or liquid is equal to 1 and hey are excluded from equilibrium constant expression Equilibrium constank of the reaction is given by the following exporession [!] [725] ² [D la indicates the ac anas apto Laefivity of the [[52] [20] [] reactants and products Since the concentration of Pto isclost [cz] [420]2 equaltounity, it does not effect the equili- brium position. from the equilibrium constant expression it is evident that #it is independent of the concentration of Pto. Therefore equilibrium position of the reaction would not be effected. Therefore second option is right option: Question 31 : reaction is co(g) + ) +42(9) According to given information the concentration & co, [co] is 8:44x100m when the new equilibrium reached after temperature inereased But but the information given here not enough to tell if the reaction is exothermic or endothermic. Because here is concentration given at new equilibrium after increasing temperature. But nowhere it is mentioned that whether the final concentration of co [co] attained by increasing from any given concentration before The given - Cock (g) of of COM the only information

temperature increased, or the final concentration of co, altamed by deereasing from any given en concentration of co, before temperature increased It is also not mentioned that after temperature of the reaction increased at what direction of the equilibrium shifted So the given information is not enough to tell if the reaction is exothermic or endothermic To predict the nature the reaction, it is imprequired to know whether in the the new concentration of cog (8.44x166M) attained by dureasing or increasing from any particular concentration If [co] increased attaened by increasing from any given concentration, at the reaction is exothermić. Otherwise endothermic If the direction of the was mentioned, it was possible to predict if the reaction was exothermic or endothermic' for exothermic reaction, with increasing temperature the direction shifted backward dire etion. for endothermic reaction with increasing temperature the equilibrium shifts towards forward. Idirection equilibrium But in the question, none of the informations are given. So it is not possible to tell if the reaction in exothermic orendo the mic
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