A reaction has the mechanism A + B X + B rightarrow P with rate constants...
Consider the mechanism for hydrogen and chlorine: Cl_2 + M rightarrow Cl + Cl + M Cl + H_2 rightarrow HCl + H, H + Cl_2 rightarrow HCl + Cl, Cl + Cl + M rightarrow Cl_2 + M. With appropriate steady-state assumptions, we know: d[HCl]/dt = 2 k_2 Squareroot k_1/k_4 [Cl_2]^0.5 [H_2] If NCl_3 is added to the mixture as an inhibitor, the following reaction needs to be considered: NCl_3 + Cl rightarrow NCl_2 + Cl_2 What is the...
Below is a mechanism for the reaction A+B- P 5. 2A ? A+C rate constant kl AtC 2A rate constant k B+C Prate constant k2 In this mechanism, C is an intermediate. nd the steady state approximation if necessary, determine the rate law for the reaction. (B) Under what conditions does the rate law become first order in [AJ? (C) Under what conditions does the rate not depend on [B]?
i. For the reaction: 2H202→ 2H2O+O2 a proposed mechanism is: H2O2 + H3O2+ → H2O + H30+ +02 (a) The intermediate in the proposed mechanism is The catalyst is (b) Apply the steady state approximation to this mechanism to deduce the rate law in terms of d[O2]/dt. (15 pts)
E17.1(a) The reaction mechanism for the decomposition of A, is thought to be A, A+A A+B_hit HP where the dissociation of A, is first order in Ay, and the recombination of A is second order in A; the reaction of A with B is first order in both A and B. Deduce the rate law for the rate of formation of P in two ways: (1) by assuming a pre-equilibrium between A, and A, and (ii) by assuming that the...
5. (6 pts) Suppose a reaction has the following mechanism: AB B + CD Assuming steady-state of B, write an expression for the rate of the appearance of D, in terms of the reactants A and C, as well as the rate constants kı, k2, and kz.
Consider the reaction mechanism: k A+B= X k-1 X+A_K2C+D Using the steady-state approximation, show that an effective rate equation for [C] is rate=d[C]/dt = -keff[A] [B]. What is keff in terms of ki, k-1, k2, [A], and [B]? A kzkz[A][B]/(k-1[B]+k2) B kık2[B]/(k-1[B]+k2) C kzkz/(k-1+k2[A]) D kık2/k-1 E ki
6. Use the steady state approximation to derive a rate law for d[D/dt with the following mechanism A+B +C Step 1) Step 2) 7. a) What is the rate law for the mechanism in question (6) if the second step is the rate-limiting step? b) Express the activation energy for the overall reaction in terms of the activation energies for each step in the mechanism from part (a)
ki Q3: The decomposition mechanism of 2 N2O(g) → 4NO2(g) + O2(g) is believed to follow the elementary reactions: (1) N203 → NO2 + NO3 (1') NO2 + NO3 → N20 k_1 (2) NO, + NO3 → NO, + O2 + NO kz (3) NO + N203 → NO2 + NO2 + NO2 kz Using the steady-state approximation, deduce the rate law for this reaction.
Part E need help on Consider the following kinetic mechanism.: (a) Write the equation that describes the concentration of E as a function of time. (b) Write the equation that describes the concentration of ES as a function of time. (c) Write the equation that describes the concentration of EP as a function of time. (d) Write the equation that describes the concentration of EI as a function of time. (e) Give the order of the following rate constants and...
A proposed mechanism for the reaction of NO_2 and CO is 2 NO_2(g) rightarrow NO(g) + NO_3(g) (Slow, endothermic) NO_3(g) + CO(g) rightarrow NO_2(g) + CO_2(g) (Fast, exothermic) a) Write the overall reaction. b) Identify each of the following as a reactant, product, , or intermediate, NO_2, CO, NO_3, CO_2, NO. c) Draw a reaction coordinate for this reaction. Indicate on this drawing the activation energy for each step and the overall enthalpy change. d) Give a plausible rate law.