Q. 114.0( 2 Votes )
The rms speed of
Root mean square velocity of gas is given as
where R=gas constant whose value is 8.31 J/mol K.
T=temperature of gas.
M= molar mass of molecule of gas
Root mean square of oxygen
Molar mass of oxygen molecule M=32. So,
When temperature is doubled, oxygen molecule dissociates into oxygen atom.
Molar mass of oxygen atom M’=16
New temperature T’=2T
Then rms speed of oxygen atom becomes
Multiplying and diving above equation by 2 we get,
New rms speed of oxygen will ve 2v.
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