Questions
The root mean square velocity of the molecules of a gas is 1260 m/s. The average speed of the molecules is
a
1029 m/s
b
1161 m/s
c
1671 m/s
d
917 m/s
detailed solution
Correct option is B
v¯=8kTπm and vrms=3kTm ∴V¯Vrms=(8/π)3=83π V¯=vrms×(8/3π)=1260(8/3π)=1161m/sTalk to our academic expert!
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The rms velocity of a gas at a certain temperature is times than that of the oxygen molecules at that temperature. The gas can be
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