Question

The root mean square velocity of an ideal gas at constant pressure varies with density as:

• A. $d^2$
• B. $d$
• C. $\sqrt{d}$
• D. $1/\sqrt{d}$

Answer 1

The correct option is D $1/\sqrt{d}$

The root mean square velocity of an ideal gas at constant pressure varies with the density as $1/\sqrt{d}$

The relationship between the root mean square velocity (u), the pressure (P) and density (d) is given below.

$u=\sqrt{\frac{3P}{d}}$