Reaction mechanics and diagram 1. Consider these three reactions as the elementary steps in the mechanism for a chemical reaction. (i)Cl2 (g)+Pt(s)à2Cl(g)+Pt(s) Ea=1550kJ AH=-950kJ (ii) Cl (g)+ CO (g) + Pt (s)àCICO (g) + Pt (s) Ea = 2240 kJ AH = 575 k (iii)Cl(g)+CICO (g)àCl₂CO(g) Ea=2350kJ AH=-825kJ a. Draw the potential energy diagram for the reaction. Label the data points for clarity. The potential energy of the reactants is 600 kJ

Reaction mechanics and diagram 1. Consider these three reactions as the elementary steps in the mechanism for a chemical reaction. (i)Cl2 (g)+Pt(s)à2Cl(g)+Pt(s) Ea=1550kJ AH=-950kJ (ii) Cl (g)+ CO (g) + Pt (s)àCICO (g) + Pt (s) Ea = 2240 kJ AH = 575 k (iii)Cl(g)+CICO (g)àCl₂CO(g) Ea=2350kJ AH=-825kJ a. Draw the potential energy diagram for the reaction. Label the data points for clarity. The potential energy of the reactants is 600 kJ

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

2- For the following reaction HI(g) → H2(g) + I2(g) Given that the activation energy for the forward reaction is +180 kJ/mol and the activation energy for the reverse reaction is +206 kJ/mol: a. Sketch a potential energy graph for this reaction and lable all relevant parts b. On the graph from part (a), show hat would happen if a catalyst were used c. Determine the enthalpy for this reaction.
A general reaction written as A + 2B → C + 2D is studied and yields the following data: [A]o [B]o Initial A[C]/At 8.00 x 10-3 mol/L·s 1.60 x 10-2 mol/L's 3.20 x 10-2 mol/L's 0.150 M 0.150 M 0.150 M 0.300 M 0.300 M 0.150 M What is the order of the reaction with respect to B? 0. 1 3 4 2.
Rank these reactions from slowest to fastest. Explain (a) Al(s)+AgNO3 (aq) (b) Zn(s)+Pb(NO3 ) 2 (aq) (c) Au(s)+H2 O(l) (d) Mg(s)+H2 SO4 (aq) (e) Ca(s)+H2 O(l); A(s)+HC(aq)
The reaction rate of CO and NO2 in the reaction CO(g) + NO2(g) → CO2(g) + NO(g) is measured using the initial rates method. The results are tabulated below. [CO] (mol/L) NO2 (mol/L) -([CO]/Δt (mol/L·s) 8.00 10-4 5.50 10-4 8.40 10-8 8.00 10-4 7.78 10-4 1.68 10-7 1.60 10-3 5.50 10-4 1.68 10-7 Determine the rate expression and calculate the rate constant for the reaction.
13. A reaction A+B+C → D follows the mechanismA  B   C A B  C   Din which the first step remains essentially in equilibrium. Show that the dependence of rate on temperature is given byk  Ae(Ea H )/RTwhere H is the enthalpy change for the first reaction.
Derive the unit for K then using K at 904 degrees celsius, find the rate of reaction at the instant when [NO]=0.470 M and [H2] = 0.315M
Consider the reaction 2 D(g) + 3 E(g) + F(g) → 2 G(g) + H(g). When [E] is decreasing at 0.10 mol/ L-s, how fast is [D] decreasing? (Disregard the use of any negative sign.) 0.30 mol/ L-s 0.15 mol/ L-s None of these 0.10 mol/ L-s 0.067 mol/ Ls
Which of the following reactions is impossible to occur as a single step? Cl2(g) --> 2 CI(g) OCI + H20(1) --> HOCI(aq) + OH NO(g) + Cl2(g) NOCI2(g) --> O 2 NO(g) + O2(g) 2 NO2(g) -->
tter What solid was formed: Copper (II) ions (from CuSO4) react with solid Appearance of copper sulfate: Appearance of zinc: Appearance after 10 min: Appearance after 20 min: Balanced reaction: Type of reaction: 0 min Lab 5 pg. 3 Zinc metal Cu²+ (aq) + Zn () About 10-20 mL of copper sulfate solution are added to two beakers. Note the appearance of the solution. Zinc is added to one beaker (the other is reference control). Note the appearance after 10 and 20 minutes in comparison to 0 min. (reference control). 10 min CuSO4 (aq) + 20 min Zn (s) → Ed: January 2032 ZnSO4 (aq) + Cu (s) In general, salts are soluble in water. In some cases, the forces that hold the salt together are too strong for the water molecules to pull apart. These are called insoluble salts. You can tell if you have an insoluble salt by the formation of a precipitate when combining solutions of soluble salts, or a gas is evolved (observed as gas bubbles, or a foam). For the following reactions, the indicated solutions…
For the reaction 5Br-+BrO3-+6H+=3Br2+ 3H2O it was found that, at a particular instant, bromine was being formed at a rate of 0.039 M/s. At that instant at what rate is a) water being formed? b) bromine being oxidized? c) H+ being consumed?
For the reaction, 2N₂O5(g) The following data were obtained: T = 339 K [N₂O), M 1.00 × 10 Time 0 100 300 600 900 a. 45.8 kJ/mol b. 120.6 kJ/mol 112.5 kJ/mol 95.7 kJ/mol 68.5 kJ/mol 89.7 kJ/mol 4NO2(g) + O2(g) C. d. e. f. *10² 2.33 - 10- 5.41- 10¹ 1.26 × 10¹ X T = 310 K [N₂Os]. M 1.00 × 10 9.54 × 10 X 8.63 10% 7.43 - 10 6.39 × 10 A T = 304 K [N₂O₂]. M Find the Ea using the best-fit straight line of the three rate constants at the three temperature values. 1.00 × 10 9.69 × 10² 9.15 × 10² 8.40 - 10 7.70 × 10²
но HO HO HO 0 + ½ O, → + H,0 H H но OH ascorbic acid dehydroascorbic acid Vitamin C is oxidized slowly to dehydroascorbic acid by the oxygen in air. It is catalyzed by ions such as Cu*2 and Fe*3. The reaction can be followed by measuring the ultraviolet absorbance at 243 nm. Time (hours) Absorbance (A) 1/A In A - In A 0.75 1.3 -0.29 0.29 1 0.38 2.6 -0.97 0.97 2 0.19 5.3 - 1.7 1.7 3 0.095 11 - 2.4 2.4 29. What is the hybridization of carbon 1 (far left) and carbon 2 (middle) in this hydrocarbon: CH3CH=CH2? (A) sp³, sp (B) sp?, sp? (C) sp³, sp? (D) sp, sp?