For each of the reactions pictured A) Give the Woodward-Hofmann classification. B) Use a frontier molecular orbital analysis to tell whether the reaction is an allowed thermal or photochemical concerted reaction. Ph. 文ーと H. Ph a) Ph Ph CN -CN CN b) CN H,CO,C co,CH3 H;CO2C Co,CH3 H
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- Write the expression for Kc for the following reactions. Ineach case indicate whether the reaction is homogeneousor heterogeneous.(a) 3 NO1g2 ∆ N2O1g2 + NO21g2(b) CH41g2 + 2 H2S1g2 ∆ CS21g2 + 4 H21g2(c) Ni1CO241g2 ∆ Ni1s2 + 4 CO1g2(d) HF1aq2 ∆ H+1aq2 + F-1aq2(e) 2 Ag1s2 + Zn2+1aq2 ∆ 2 Ag+1aq2 + Zn1s2(f) H2O1l2 ∆ H+1aq2 + OH-1aq2(g) 2 H2O1l2 ∆ 2 H+1aq2 + 2 OH-1aq2Find out feasible reaction in high temperature gas-phase from following reactions? explain reasoning in all cases- (a) CuBr2(g) + 2NaF(g) --> CuF2(g) + 2NaBr(g) (b) TiF4(g) + 2TiI2(g)--> TiI4(g) + 2TiF2(g) (c) CuI2(g) + 2CuF(g) --> CuF2(g) + 2CuI(g) (d) CoF2(g) + HgBr2(g) --> CoBr2(g) + HgF2(g)Please answer all subquestions ASAP, a like is guaranteed.
- Consider the reaction Mn+ + ne- ⇌ M. If ΔG*c = ΔG* + (1-α)nFE and η = E – Eeq, prove that ic = io exp[-(1-α)nFηa)/RT)].Draw the mechanism for the equilibrium illustrated below. What is the process called? Is the Keq >1, <1, =1 for this reaction as illustrated. Is the equilibrium direction dictated by thermodynamics or kinetics? Explain your rationale in detail.At 600 K and 5.0 bar, the degree of dissociation of PCl5(g) is 0.920. Phosphorus pentachloride thermally disassociates according to following reaction:PCl5(g) ⇌ PCl3(g) + Cl2(g)a) What is the degree of dissociation at 600 K and 1.0 bar of pressure? b) If the degree of dissociation is 0.80 at 520 K and 1.0 bar, what are ∆G, ∆H and ∆S at this temperature? You can assume ∆H and ∆S are independent of temperature over this range.
- Consider this scenario and answer the following questions: Chlorine atoms resulting from decomposition of chlorofluoromethanes, such as CCl2F2, catalyze the decomposition of ozone in the atmosphere. One simplifiedmechanism for the decomposition is:O3 ⎯⎯⎯⎯⎯⎯⎯→ sunlight O2 + OO3 + Cl ⟶ O2 + ClOClO + O ⟶ Cl + O2(a) Explain why chlorine atoms are catalysts in the gas-phase transformation: 2O3 ⟶ 3O2(b) Nitric oxide is also involved in the decomposition of ozone by the mechanism:O3 ⎯⎯⎯⎯⎯⎯⎯→ sunlight O2 + OO3 + NO ⟶ NO2 + O2NO2 + O ⟶ NO + O2Is NO a catalyst for the decomposition? Explain your answer.The first step in the heterogeneoushydrogenation of ethylene is adsorption of theethylene molecule on a metal surface. One proposed explanation for the “sticking” of ethylene to a metalsurface is the interaction of the electrons in the C—C π bond with vacant orbitals on the metal surface. (a) If thisnotion is correct, would ethane be expected to adsorb to a metal surface, and, if so, how strongly would ethane bindcompared to ethylene? (b) Based on its Lewis structure,would you expect ammonia to adsorb to a metal surfaceusing a similar explanation as for ethylene?From the data given below calculate the value of ΔS° for the reaction. T = 298.15 K. A(g) + 1B(g) ---> 1C(s) + D(l)ΔfH°/(kJ mol-1) -393.23 -44.71 -332.49 -284.45ΔfG°/(kJ mol-1) -392.07 -15.56 -197.3 -231.43