The r.m.s. speed of oxygen is \( v \) at a particular temperature. ...

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The r.m.s. speed of oxygen is \( v \) at a particular temperature. If the temperature is doubled and oxygen molecules
\( \mathrm{P} \) dissociate into oxygen atoms, the r.m.s. speed becomes
[WB JEE 2015]
W
(a) \( v \)
(b) \( \sqrt{2 v} \)
(c) \( 2 v \)
(d) \( 4 v \)
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