Answer
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Work Step by Step
Since rms speed is inversely proportional to molecular weight, the order of rms speed at the same temperature is:
$CH_2F_2\lt Ar\lt N_2\lt CH_4$
Chemistry and Chemical Reactivity (9th Edition)
by Kotz, John C.; Treichel, Paul M.; Townsend, John R.; Treichel, David A.
Published by
Cengage Learning
ISBN 10:
1133949649
ISBN 13:
978-1-13394-964-0
Chapter 10 Gases and Their Properties - Study Questions - Page 403d: 45
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