Question:medium

Arrange the following gases in descending order of root mean square speed : [Given T = 300 K]
A. \( \text{H}_2 \)
B. \( \text{O}_2 \)
C. \( \text{N}_2 \)
D. \( \text{H}_2\text{O} \)
E. \( \text{CO}_2 \)

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The lighter the gas molecule, the faster it moves at a given temperature. Hydrogen is always the fastest common gas.

Updated On: May 20, 2026

\(A > B > C > D > E \)
\(E > B > C > D > A \)
\(A > D > C > B > E \)
\(A > C > D > B > E \)

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The Correct Option is C

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