13.25. If the rate of change in the concentration of a reactareincreases (becomes less negative) with time, does the rateof change in the concentration of a product of the samereaction increase or decrease?

The change in the concentration of reactant or product with time is known as rate of reaction and…

Answered: 13.25. If the rate of change in the…

Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter11: Rate Of Reaction

Section: Chapter Questions

Problem 37QAP: The first-order rate constant for the decomposition of a certain hormone in water at 25C is...

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Similar questions

What is the difference between average rate, initial rate, and instantaneous rate?
For a certain reaction, Ea is 135 kJ and H=45 kJ. In the presence of a catalyst, the activation energy is 39% of that for the uncatalyzed reaction. Draw a diagram similar to Figure 11.14 but instead of showing two activated complexes (two humps) show only one activated complex (i.e., only one hump) for the reaction. What is the activation energy of the uncatalyzed reverse reaction?
Suppose that the half-life of steroids taken by an athlete is 42 days. Assuming that the steroids biodegrade by a first-order process 5, how long would it take for 164 of the initial dose to remain in the athlete’s body?
The reaction is catalyzed by the enzyme succinate dehydrogenase. When malonate ions or oxalate ions are added to the reaction mixture, the rate decreases significantly. Try to account for this observation in terms of the description of enzyme catalysis given in the text. The structures of malonate and oxalate ions are
The reaction of CO with CI2 gives phosgene (COCI2), a nerve gas that was used in World War I. Use the mechanism shown here to complete the following exercises: CI2(g)2CI(g) (fast, k1 represents the forward rate constant, k-1 the reverse rate constant) CO(g)+CI(g)COCI(g) (slow, k2 the rate constant) COCI(g)+CI(g)COCI2(g) (fast, k3 the rate constant) (a) Write the overall reaction. (b) Identify all intermediates. (c) Write the rate law for each elementary reaction. (d) Write the overall rate law expression.
Describe how graphical methods can be used to determine the order of a reaction and its rate constant from a series of data that includes the concentration of A at varying times.
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 that has two parallel pathways both first-order to products. Pathway 1, leading to product B, has a rate constant of 1.34105s1. Product C- producing pathway 2 has a rate constant of 6.55104s1. Plot the concentrations of A, B, and C versus time, and determine the time necessary to produce the maximum amount of the kinetically favored product.
The uncoiling of deoxyribonucleic acid (DNA) is a first-order reaction. Its activation energy is 420 kJ. At 37C, the rate constant is 4.90104min1 (a) What is the half-life of the uncoiling at 37C (normal body temperature)? (b) What is the half-life of the uncoiling if the organism has a temperature of 40C(104F)? (c) By what factor does the rate of uncoiling increase (per C) over this temperature interval?
The first-order rate constant for the decomposition of a certain hormone in water at 25C is 3.42104day1. (a) If a 0.0200 M solution of the hormone is stored at 25C for two months, what will its concentration be at the end of that period? (b) How long will it take for the concentration of the solution to drop from 0.0200 M to 0.00350 M? (c) What is the half-life of the hormone?
Describe how graphical methods can be used to determine the activation energy of a reaction from a series of data that includes the rate of reaction at varying temperatures.
Explain what happens as a reaction starts with delt G<0 and reached the point where delt G= 0?

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13.25. If the rate of change in the concentration of a reactare increases (becomes less negative) with time, does the rate of change in the concentration of a product of the same reaction increase or decrease?