Matching Questions D2 4. 5. 6. Use the following terms to identify the correct definition below. a. reactive intermediate b. enthalpy c. activation energy d. rate determining step e. catalyst f. kinetic energy A chemical that is produced in one step of a reaction, and then used up in a later step The energy required for a productive collision to produce a reaction The slowest elementary step in a reaction mechanism

Matching Questions D2 4. 5. 6. Use the following terms to identify the correct definition below. a. reactive intermediate b. enthalpy c. activation energy d. rate determining step e. catalyst f. kinetic energy A chemical that is produced in one step of a reaction, and then used up in a later step The energy required for a productive collision to produce a reaction The slowest elementary step in a reaction mechanism

Introductory Chemistry: A Foundation

9th Edition

ISBN:9781337399425

Author:Steven S. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Donald J. DeCoste

Chapter17: Equilibrium

Section: Chapter Questions

Problem 9CR

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Similar questions

Consider the following hypothetical reaction: A+BC Calculate the average rate of the reaction on the basis of the following information: a. Pure A,B, and C are mixed together at concentrations of A+B=0.400M, C=0.150M. After 6.00minutes, the concentration of C is 0.418M. b. Pure A, and B are mixed together at same concentrations of 0.361M. After 7.00minutes, the concentration of A is found to be 0.048M.
Can a reaction mechanism ever be proven correct? Can it be proven incorrect?
For the gas-phase reaction 2H2+O22H2O rxnG is 457.18kJ. What does a graph of G versus lnQ lnQ varying from 50 to +50 look like at 25C? Change the temperature and find out if the graph looks substantially different at different temperatures.
Compare the functions of homogeneous and heterogeneous catalysts.
The reaction NO(g) + O,(g) — NO,(g) + 0(g) plays a role in the formation of nitrogen dioxide in automobile engines. Suppose that a series of experiments measured the rate of this reaction at 500 K and produced the following data; [NO] (mol L ’) [OJ (mol L 1) Rate = -A[NO]/Af (mol L_1 s-1) 0.002 0.005 8.0 X 10"'7 0.002 0.010 1.6 X 10-'6 0.006 0.005 2.4 X IO-'6 Derive a rate law for the reaction and determine the value of the rate constant.
If the reaction:A+BC+D is designated as first order, the rate depends on: a.the concentration of only one reactant. b.the concentration of each reactant. c.no specific concentration. d.the temperature only.
Explain what is meant by the average rate of a reaction.
Substances that poison a catalyst pose a major concern for many engineering designs, including those for catalytic converters. One design option is to add materials that react with potential poisons before they reach the catalyst. Among the commonly encountered catalyst poisons are silicon and phosphorus, which typically form phosphate or silicate ions in the oxidizing environment of an engine. Group 2 elements are added to the catalyst to react with these contaminants before they reach the working portion of the catalytic converter. If estimates show that a catalytic converter will be exposed to 625 g of silicon during its lifetime, what mass of beryllium would need to be included in the design?
. Account for the increase in reaction rate brought about by a catalyst.
Based on the diagram in Exercise 12.83, which of the reactions has the fastest rate? Which has the slowest rate?
Define these terms: (a) unimolecular reaction (b) bimolecular reaction (c) elementary reaction (d) overall reaction
Use the PhET Reactions Single collision tab of the simulation applet, enable the Energy view" by clicking the + icon. Select the first A+BCAB+C reaction (A is yellow, B is purple. and C is navy blue). Using the angled shut option, try launching the A atom with varying angles, but with more Total energy than the transition state. What happens when the A atom hits the BC molecule from different directions? Why?