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...

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Cemeles the le Exercise 15 Date: 79 Study the following reactlons and write down, with a reason, whether the reaction is exothermic or endothermic. cCL(G) 2F (g)→ CF,(g) 2CL(g) 752 k] 1.1 12 CIF (g) 514 k] Cllg) 3F(g) 13 CH,OH(G) F(g)- FCH,OH(g) + HF(g) + 476 k] 1.4 PCL(g) CL(g) → PCL,(9) + 402 k] 1.5 OF (g) + 368 k] → O(g) • 2F(g) 1.6 4NH,(g) + 70,(g) → 4NO̟(g) • óH,O(g) • 2 428 k] 2 The following possible values are given for potential energies that are absorbed and released respectively for the fictional reaction A B C D. Each time, calculate the energy change for the reaction and also say whether the reaction is exothermic or endothermic. Energy absorbed to break bonds (k]•mol) Energy released when bonds form Energy change (k] mol") Exothermic/ endothermic (kJ•mol") 2.1 350 420 22 870 630 23 311 211 24 1232 2 341
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.
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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…