Answer the follo ons. Show your solutions. Initial rates for the reaction of nitrogen monoxide and chlorine 2NO+ Cl₂ → 2NOCL were measured at 27°C starting with various concentrations of NO and Cl. These data were collected. Initial Concentration (mol/L) Experiment [NO] 0.020 0.020 [C] 0.010 0.020 2. What is the value of the rate constant k? 1 8.27 x 10³ 2 1.65 x 10 3 0.020 3.31 x 104 4 0.040 0.020 6.60 x 10 5 0.010 0.020 4.10 10³ 1. What is the order of the reaction with respect to each reactant, the overall order of the reaction, and its rate law? Initial Rate (M/s) 0.040

Answer the follo ons. Show your solutions. Initial rates for the reaction of nitrogen monoxide and chlorine 2NO+ Cl₂ → 2NOCL were measured at 27°C starting with various concentrations of NO and Cl. These data were collected. Initial Concentration (mol/L) Experiment [NO] 0.020 0.020 [C] 0.010 0.020 2. What is the value of the rate constant k? 1 8.27 x 10³ 2 1.65 x 10 3 0.020 3.31 x 104 4 0.040 0.020 6.60 x 10 5 0.010 0.020 4.10 10³ 1. What is the order of the reaction with respect to each reactant, the overall order of the reaction, and its rate law? Initial Rate (M/s) 0.040

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 8CR

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How do chemists envision reactions taking place in terms of the collision model for reactions? Give an example of a simple reaction and how you might envision the reaction’s taking place by means of a collision between the molecules.
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?
A reaction is started by mixing reactants. As time passes, the rate decreases. Explain this behavior that is characteristic of most reactions.
How does an increase in temperature affect rate of reaction? Explain this effect in terms of the collision theory of the reaction rate.
. Account for the increase in reaction rate brought about by a catalyst.
Apply collision theory to explain why powdered zinc reacts to form hydrogen gas faster than large pieces of zinc when both are placed in hydrochloric acid solution.
use the kineticmolecular theory to explain why an increase in temperature increases reaction rate.
. What does the activation energy for a reaction represent? How is the activation energy related to whether a collision between molecules is successful?
Which reaction mechanism assumptions are unimportant in describing simple ionic reactions between cations and anions? Why?
You carry out the following reaction by introducing N2O4 into an evacuated flask and observing the concentration change of the product over time. N2O4(g)2NO2(g) Which one of the curves shown here reflects the data collected for this reaction?
One of the concerns about the use of Freons is that they will migrate to the upper atmosphere, where chlorine atoms can be generated by the following reaction: CCl2F2(g)Freon-12hvCF2Cl(g)+Cl(g) Chlorine atoms can act as a catalyst for the destruction of ozone. The activation energy for the reaction Cl(g) + O3(g) ClO(g) + O2(g) Is 2.1 kJ/mol. Which is the more effective catalyst for the destruction of ozone, Cl or NO? (See Exercise 75.)

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