Question

Select the incorrect statement about Maxwell’s distribution.

• A. Most of the molecules move with speed $V_{mps}$
• B. $V_{rms}>V_{av}>V_{mps}$
• C. The area under distribution curve gives the total number of molecules of the gas
• D. The distribution curve is symmetric about the most probable speed

Answer 1

The correct option is D The distribution curve is symmetric about the most probable speed

$v_{rms}=\sqrt{\frac{3kT}{m}}$

$V_{am}=\sqrt{\frac{8kT}{\pi m}}$

$V_{mps}=\sqrt{\frac{2kT}{m}}$


From the graph we can say that the distribution curve is not symmetric about the most probable speed.