At 0 °C, fewer than half the molecules move at speeds Ump = the speed exhibited by the largest At 100 °C, more than Uay = the average (mean) speed of all Urms = the speed of a molecule whose kinetic half the molecules number of molecules the molecules move at speeds greater than 500 m/s. energy is equal to the average (mean) kinetic energy of all the molecules greater than 500 m/s. 0°C 100 °C || 5 x 102 5 x 102 Molecular speed (m/s) 10 x 102 10 x 102 Molecular speed (m/s) (a) (b) A Figure 10.12 Distribution of molecular speed. The relative area under the curve for a range of speeds gives the relative fraction of molecules that have those speeds. (b) Position of most probable (Ump), average (uav), and root- mean-square (urms) speeds of gas molecules. The data shown here are for nitrogen gas at 0 °C. cular speeds for nitrogen gas. (a) The effect of temperature on Activate VWindows Fraction of molecules Fraction of molecules

At 0 °C, fewer than half the molecules move at speeds Ump = the speed exhibited by the largest At 100 °C, more than Uay = the average (mean) speed of all Urms = the speed of a molecule whose kinetic half the molecules number of molecules the molecules move at speeds greater than 500 m/s. energy is equal to the average (mean) kinetic energy of all the molecules greater than 500 m/s. 0°C 100 °C || 5 x 102 5 x 102 Molecular speed (m/s) 10 x 102 10 x 102 Molecular speed (m/s) (a) (b) A Figure 10.12 Distribution of molecular speed. The relative area under the curve for a range of speeds gives the relative fraction of molecules that have those speeds. (b) Position of most probable (Ump), average (uav), and root- mean-square (urms) speeds of gas molecules. The data shown here are for nitrogen gas at 0 °C. cular speeds for nitrogen gas. (a) The effect of temperature on Activate VWindows Fraction of molecules Fraction of molecules

Chemistry: An Atoms First Approach

2nd Edition

ISBN:9781305079243

Author:Steven S. Zumdahl, Susan A. Zumdahl

Publisher:Steven S. Zumdahl, Susan A. Zumdahl

Chapter8: Gases

Section: Chapter Questions

Problem 130AE

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Similar questions

A 36.0—L cylinder of a gas used for calibration of blood gas analyzers in medical laboratories contains 350 g CO2, 805 g 02, and 4,880 g N2. At 25 degrees C. what is the pressure in the cylinder in atmospheres?
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Ethanol, C2H5OH, is produced industrially from ethylene, C2H4, by the following sequence of reactions: 3C2H4+2H2SO4C2H5HSO4+( C 2 H 5)2SO4C2H5HSO4+( C 2 H 5)2SO4+3H2O3C2H5OH+2H2SO4 What volume of ethylene at STP is required to produce 1.000 metric ton (1000 kg) of ethanol if the overall yield of ethanol is 90.1%?
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