1. The following diagram represents an imaginary two-step mechanism. Let the red spheres represent element A, the green ones element B, and the blue ones element C. (a) Write the equation for the net reaction that is occurring. (b) Identify the intermediate. (c) Identify the catalyst. (#14.15, p.656)

1. The following diagram represents an imaginary two-step mechanism. Let the red spheres represent element A, the green ones element B, and the blue ones element C. (a) Write the equation for the net reaction that is occurring. (b) Identify the intermediate. (c) Identify the catalyst. (#14.15, p.656)

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

For this reaction: Pa(s) +3 02 (g) - POg (s) + heat Which of the following changes would INCREASE the initial rate of the reaction? More than one answer may be correct. Select all that apply. O Grind the solid phosphorus into a fine powder O Use more 02 (g) in the reaction mixture Heat the reaction to a higher temperature O Add an appropriate catalyst Increase the volume of the reaction vessel Hydrazine, a rocket propellant, can be made from its elements according to this reaction: 8 H2 + 3 N2 N2H4 + 4 NH3 (ammonia is also made) When the individual rate of the H2 disappearance is -0.00795 M/s, what is the individual rate for N2?
2a) Briefly explain, in your own words, the difference between the "activation energy" of a reaction and the "net free energy change" of a reaction.
Which statement about the factors that affect reaction rates is false? Decreasing the concentrations of the reacting particles decreases the chance of collision. O A collision with poor orientation requires a higher activation energy than a collision with optimum orientation. Increasing the pressure in a gaseous reaction increases the chance of collision. A reaction occurs every time particles of the reactants collide. Increasing the temperature increases the reaction rate.
(a) Select all of the correct statements about reaction rates from the choices below. O The lower the rate of a reaction the longer it takes to reach completion. O Reaction rates always increase as masses of solid reactants increase. O The higher the rate of a reaction the longer it takes to reach completion. A balanced chemical reaction is necessary to relate the rate of reaction to the concentration of a reactant. Reaction rate constants decrease with increasing temperature. O Catalysts increase reaction rates. Reaction rates decrease with increasing temperature.
ii) Explain the effect of Catalyst on the rate of a chemical reaction.
Which of the following statements is/are incorrect? (a) At higher temperatures, a larger fraction of molecules have enough energy to get over the activation energy barrier. (b) Reactions are faster at a higher temperature because activation energies are lower. Statement (a) Statement (b) Both Statement (a) and Statement (b) are correct. O Neither Statement (a) nor Statement (b) is correct.
In general, a catalyst lowers the activation energy, which makes A the rate constant larger in the reaction rate higher B the rate, constant smaller, and the reaction rate higher C no modification to the reaction D the rate, constant smaller, and the reaction rate
The following diagram represents an imaginary two-stepmechanism. Let the red spheres represent element A, thegreen ones element B, and the blue ones element C. (a)Write the equation for the net reaction that is occurring.(b) Identify the intermediate. (c) Identify the catalyst.
To complete the following statement: To speed up the reaction, a catalyst... A) increases the activation energy. B) decreases the activation energy. C) increases the average kinetic energy of the reactants. D) increases the concentrations of reactants. E) increases the collision frequency of relevant molecules.
Which statement about catalysts is NOT true? (a) A catalyst increases the rate of a chemical reaction (b) A catalyst lowers the activation energy of a chemical reaction. (c) A catalyst lowers the H of a chemical reaction. (d) A catalyst is recovered unchanged in the reaction it catalyzes
Which of the following changes will affect the activation energy of a reaction? 1. Increasing or decreasing the reaction temperature. 2. Adding a catalyst. 3. Increasing or decreasing the reactant concentrations. 1 only 2 only 3 only 1 and 2 2 and 3
Draw a graph showing the reaction pathway for an overallexothermic reaction with two intermediates that areproduced at different rates. On your graph indicate thereactants, products, intermediates, transition states, andactivation energies.