How does the rate of decomposition vary over time? The compound dinitrogen pentoxide (N,O5) decomposes in air according to the equation Time (min) [N,0,] (mol/L) 0.01756 20.0 0.00933 2N,Os(g) → 4NO2(g) + O2(g) 40.0 0.00531 60.0 0.00295 Knowing the rate of decomposition allows its concentration to be determined at any time. 80.0 0.00167 100.0 0.00094 Analysis The table shows the results of an experiment in which the concentration of N,Os, was measured over time at normal atmospheric pressure and a temperature of 45°C. 2. Express the average reaction rate for each time interval in moles of NO2 produced per liter per minute. Use the reaction equation to explain the relationship between these rates and those calculated in Question 1. Think Critically 1. Calculate the average reaction rate for each time interval: 0-20 min, 40-60 min, and 80-100 min. Express each rate as a positive number and in moles of N205 consumed per liter per minute. 3. Interpret the data and your calculations in describing how the average rate of decomposition of N205 varies over time. 4. Apply collision theory to infer why the reaction rate varies as it does.

How does the rate of decomposition vary over time? The compound dinitrogen pentoxide (N,O5) decomposes in air according to the equation Time (min) [N,0,] (mol/L) 0.01756 20.0 0.00933 2N,Os(g) → 4NO2(g) + O2(g) 40.0 0.00531 60.0 0.00295 Knowing the rate of decomposition allows its concentration to be determined at any time. 80.0 0.00167 100.0 0.00094 Analysis The table shows the results of an experiment in which the concentration of N,Os, was measured over time at normal atmospheric pressure and a temperature of 45°C. 2. Express the average reaction rate for each time interval in moles of NO2 produced per liter per minute. Use the reaction equation to explain the relationship between these rates and those calculated in Question 1. Think Critically 1. Calculate the average reaction rate for each time interval: 0-20 min, 40-60 min, and 80-100 min. Express each rate as a positive number and in moles of N205 consumed per liter per minute. 3. Interpret the data and your calculations in describing how the average rate of decomposition of N205 varies over time. 4. Apply collision theory to infer why the reaction rate varies as it does.

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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