2. Which of the following kinds of catalysis can be explained by the adsorption theory? A. enzyme catalysis B. acid base catalysis C. homogeneous catalysis D. heterogeneous catalysis 3. Which of the following is not a category of catalysis? A. artificial B. enzymatic C. homogeneous D. heterogeneous 4. Which of the Tollowing statements defines activation energy? A. it ends the reaction B. it binds a substrate to an active site C. it re-forms bonds in product molecules D. it breaks the bonds of reactant molecules 5. How does a catalyst speed up a chemical reaction? A. it lowers the energy pathways possible B. it binds to enzymes to release substrates C. it increases the concentration of the products D. it increases the concentration of the reactants

2. Which of the following kinds of catalysis can be explained by the adsorption theory? A. enzyme catalysis B. acid base catalysis C. homogeneous catalysis D. heterogeneous catalysis 3. Which of the following is not a category of catalysis? A. artificial B. enzymatic C. homogeneous D. heterogeneous 4. Which of the Tollowing statements defines activation energy? A. it ends the reaction B. it binds a substrate to an active site C. it re-forms bonds in product molecules D. it breaks the bonds of reactant molecules 5. How does a catalyst speed up a chemical reaction? A. it lowers the energy pathways possible B. it binds to enzymes to release substrates C. it increases the concentration of the products D. it increases the concentration of the reactants

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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Similar questions

The addition of a catalyst(s) is an extra step in the overall reaction. Which of the following provides a benefit towards the additional step? a. promotes the formation of the product faster b. raises the temperature of the reaction c. lowers the activation energy d. the first step will always be slower e. slows the overall reaction to minimize byproducts
1. a. Explain in your own words, what is meant by the term "activation energy." b. How can the idea of activation energy be used to explain the temperature dependance of rate? c. How can activation energy be used to explain why a catalyst increases the rate of a chemical reaction
Which of the following changes would most likely increase the rate of a reaction? a. increasing the size of the reactant particles b. decreasing the reaction temperature c. decreasing the concentration of a reactant d. decreasing the activation energy for the reaction
Catalysts play an important role in many reactions. Check all of the true statements. A. Any catalyst will speed up any reaction. B. Catalysts can be in the same phase or a different phase as the reactants. C. A catalyst can change the mechanism of a reaction. D. A catalyst is consumed in a chemical reaction.
According to collision theory, the increase observed in the rate constant with increasing temperature is at least partly attributed to the fact that the enthalpy change for most reactions is negative. True or False.
If the activation energy of a reaction increases, what happens to the rate constant (k)? A.the rate constant decreases B.the rate constant stays the same C. there isn't enough information to predict what happens to the rate constant D. the rate constant increases
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Which statement is NOT correct? A. Activation energy is the same in the forward and reverse direction. B. The activated complex will be the highest on the reaction energy diagram. C. If the forward reaction is endothermic, the reverse reaction will be exothermic. D. In an endothermic reaction, the activation energy is usually greater than the change in enthalpy. E. An activated complex has higher energy than any molecule contributing to it.
1. All of the following is true about the assumption of Langmuir-Hinshelwood kinetic model of catalysis, except which one does not? a. There are no interactions between absorbed moleculesb. Adsorption does not form more than one layerc. adsorbed molecules undergo a unimolecular reaction after adsorbing to the surface