1. TRUE or FALSE a) Temperature is a very essential factor in preserving foods and medicines. b) Enzymes are considered as catalyst used to speed up the biochemical reactions in the body. c) A catalyst is a substance that changes the rate of a chemical reaction by providing an alternate pathway, lowering the activation energy.

1. TRUE or FALSE a) Temperature is a very essential factor in preserving foods and medicines. b) Enzymes are considered as catalyst used to speed up the biochemical reactions in the body. c) A catalyst is a substance that changes the rate of a chemical reaction by providing an alternate pathway, lowering the activation energy.

Introductory Chemistry: An Active Learning Approach

6th Edition

ISBN:9781305079250

Author:Mark S. Cracolice, Ed Peters

Publisher:Mark S. Cracolice, Ed Peters

Chapter18: Chemical Equilibrium

Section: Chapter Questions

Problem 9E

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Similar questions

In each of the following, which reaction mechanism assumption is apparently being violated? Explain your answers. a. A reaction takes place more rapidly when the concentration of reactants is decreased. b. A reaction takes place more rapidly when the reaction mixture is cooled. c. The reaction rate of A+BAB increases as the concentration of A is increased but does not change as the concentration of B is increased.
Consider a reaction in which E a=129 kJ and H=29 kJ. In the presence of a catalyst, the activation energy is 48% of the uncatalyzed reaction. Follow the directions in Question 71 in drawing an energy diagram.
Why are enzymes important? For example, what is the importance of the enzyme carbonic anhydrase in the body?
Consider the following activation energy diagram. Which of the following statements about the diagram are true? (a) E a(forward)E a(reverse)(b) B represents the activation energy of the forward reaction. (c) Energy (H)for the reaction is AC. (d) E a(forward)=BA(e) E a(forward)=E a(reverse)C
Define these terms: (a) unimolecular reaction (b) bimolecular reaction (c) elementary reaction (d) overall reaction
Compare the lock-and-key and induced-fit models for substrate binding to an enzyme.
How does an increase in temperature affect rate of reaction? Explain this effect in terms of the collision theory of the reaction rate.
use the kineticmolecular theory to explain why an increase in temperature increases reaction rate.
For the following reaction profile, indicate a. the positions of reactants and products. b. the activation energy. c. E for the reaction.