Practice ProblemATTEMPT
Write K? expressions for
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Chemistry
- 4 (a) Calculate the value of Kc for the reaction: PC15 ( PC13 ( + Cl2 (g) AH = Positive Given that when 8.4 mol of PC15 (g) is mixed with 1.8 mol of PC13 (g) and allowed to come to equilibrium in a 10 dm³ container the amount of PC15 (g) at equilibrium is 7.2 mol. Kc = (b) Explain the effect of the following changes below on the value of Kc: (i) Increasing temperature (ii) Lowering the concentration of chlorine (Cl₂) (iii) Addition of a catalystarrow_forwardThe equilibrium constant (KC) is 10.0 x 10-10 at 800 K for the reaction. N2O3 (g) ⇄ NO2 (g) + NO (g) (2a)Write the equilibrium expression for this reaction. (2b) What is the value of KP at this temperature?(2c) What is the value of KC for the reverse reaction?arrow_forwardWrite the equilibrium constant expressions for the following. Fill the missing powers in the expressions. (a) 2NAHCO3(s) 2 Na2CO3(s) + CO2(g) + H2O(g) (Pco, ) (PH,0) i i Keq (b) 2N2(g) + 6H2O(1) 2 4NH3(g) + 302(g) (PNH, ) (Po.) (PNa ) i i i Keg (c) 2C2H4(g) + O2(g) 2 2CH3CHO(g) (PCH, CHO ) (Pc,H, ) i i (Ро.) i Keg (d) Ag2SO4(s) 2 2Ag*(aq) + SO4²-(aq) [Ag*] i [so? ] i Keg (e) NH4HS(s) 2 H2S(g) + NH3(g) (PH,s) (PNH, ) i i Kegarrow_forward
- 5.Write equilibrium expressions for each of the following reactions: (a) CaCO3(s) →*CaO(s) + CO,(g) (b) Hg() + Hg²+ (aq) → Hg2+ (aq) (c) 2Fe(s) + 3H₂O(1) (d) O₂(g) + 2H₂(g) ● ● ● Fe₂O3(s) + 2H₂(g) -2H₂O(1).arrow_forwardWrite the equilibrium constant expression, K, for the following reaction taking place in dilute aqueous solution. (CH3),NH (aq) + H2O(1) (CH)2NH2* (аq)+ оH(аq) K =arrow_forwarda) Write the expression for the equilibrium constant Kc for the following reactions: CO2(g) + NaOH(s)⇄NaHCO3(s) S8(g) + 8O2(g) ⇄ 8SO2(g) P4(s) + 5O2(g) ⇄ P4O10(s) SiH4(g) + 2Cl2(g) ⇄ SiCl4(g) + 2H2(g) (b) Write the expression for the equilibrium constantKp for the following reactions: CO(g) + Cl2(g)⇄COCl2(g) 4KO2(g) + 2 H2O(g) ⇄ 4 KOH(g) +3O2(g)arrow_forward
- Write the equilibrium constant expression for each of the following reactions and classify the reactions as homogeneous or heterogeneous. (a) H2S (g) + O2 (g) ↔ H2O (g) + SO2 (g) (b) CO2 (g) + H2 (g) ↔ CO (g) + H2O (l) (c) HCl (g) + O2 (g) + C2H4 (g) ↔ C2H4Cl2 (g) + H2O (g)arrow_forward(a) Calculate K at 298 K for the following reaction: NO(g) + 1/2 O2(g) ⇌ NO2(g) ΔGf0(kJ/mol) NO(g)86.60 NO2(g)51 O2(g)0 K=?arrow_forward1) Given the following reaction what is the expression for K? 2SO2 (g) + 02 (g) = 2S03 (g)arrow_forward
- C (s) + 2 Cl, (g)= CC1, (g) Answer and briefly explain: Which would cause the reaction to shift to the right: (a) ↑ V (b) + N2 (c) Į V?arrow_forwardGiven the two reactions 3. PbCl₂(aq) = Pb²+ (aq) + 2Cl¯ (aq), K3=1.86x10-10, and 4. AgCl(aq) = Ag+ (aq) + Cl(aq), K₁=1.25x10, what is the equilibrium constant Kfinal for the following reaction? Express your answer numerically. View Available Hint(s) Kfinal II Submit VE ΑΣΦ Provide Feedback X PbCl₂ (aq) + 2Ag+ (aq) = 2AgCl(aq) + Pb²+ (aq) x Š √x Vx Previous Answers f P Pearson t X Incorrect; Try Again; 9 attempts remaining X x O 3 ? IXI Xx-10" Review | Const > n Education Inc. All rights reserved. | Terms of Use | Privacy Policy | Permissions | Contact Us |arrow_forwardWrite the equilibrium expression and identify the specific equilibrium constant symbol if possible, otherwise use Ke. (a) 2 H2O(1) = H,O* (aq) + OH (aq) (b) HCN (aq) + H2O (1) = H,0* (aq) + CN" (aq) (c) 5 C,0,2 (aq) + 2 MnO4" (aq) + 16 H* (aq) = 10 CO2 (g) +2 Mn²* (aq) + 8 H,0 (1) (d) Sr(HCO3)2 (aq) = SrCO3 (s) + CO2 (aq) + H20 (1) (e) PbSO, (s) = Pb²* (aq) + SO,2 (aq) 4. 4.arrow_forward
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