Question
Question: The rms velocity of an ideal gas at \(27^{o}C\) is 0.3 \(ms^{- 1}\). Its rms velocity at \(927^{o}C\...
The rms velocity of an ideal gas at 27oC is 0.3 ms−1. Its rms velocity at 927oC (in ms−1) is
A
3.0
B
2.4
C
0.9
D
0.6
Answer
0.6
Explanation
Solution
u=M3RT
For the same gas at two different temperatures,
u2u1=T2T1; u20.3=1200300=21, u2=0.6ms−1