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3 RT rms speed where R = 8.314 J/(mol·K) and M is molar mass in kilograms per mole. Note that a joule is the same as a kilogram-meter squared per second squared (kg-m2/s²). What is the rms speed of N, molecules at 435 K? rms speed: m/s What is the rms speed of He atoms at 435 K? rms speed: m/s

3 RT rms speed where R = 8.314 J/(mol·K) and M is molar mass in kilograms per mole. Note that a joule is the same as a kilogram-meter squared per second squared (kg-m2/s²). What is the rms speed of N, molecules at 435 K? rms speed: m/s What is the rms speed of He atoms at 435 K? rms speed: m/s

Chemistry: The Molecular Science
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter8: Properties Of Gases
Section: Chapter Questions
Problem 69QRT
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The average kinetic energy of the molecules in a gas sample depends only on the temperature, T. However, given the same kinetic energies, a lighter molecule will move faster than a heavier molecule, as shown in the equation for rms speed 3 RT rms speed = M where R = 8.314 J/(mol·K) and M is molar mass in kilograms per mole. Note that a joule is the same as a kilogram-meter squared per second squared (kg-m2/s?). What is the rms speed of N, molecules at 435 K? rms speed: m/s What is the rms speed of He atoms at 435 K? rms speed: m/s
Transcribed Image Text:The average kinetic energy of the molecules in a gas sample depends only on the temperature, T. However, given the same kinetic energies, a lighter molecule will move faster than a heavier molecule, as shown in the equation for rms speed 3 RT rms speed = M where R = 8.314 J/(mol·K) and M is molar mass in kilograms per mole. Note that a joule is the same as a kilogram-meter squared per second squared (kg-m2/s?). What is the rms speed of N, molecules at 435 K? rms speed: m/s What is the rms speed of He atoms at 435 K? rms speed: m/s
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