Question

At a given temperature T
$v_1=\sqrt{\frac{x_{1}RT}{M}}$ = rms speed of gas molecules,
$v_2=\sqrt{\frac{x_{2}RT}{M}}$ = average speed of gas molecules
$v_3=\sqrt{\frac{x_{3}RT}{M}}$ = most probable speed of gas molecules
$v_4=\sqrt{\frac{x_{4}RT}{M}}$ = speed of sound

Answer 1

$v_{rms}=\sqrt{3RT/M}$
$v_{avg}=\sqrt{8RT/\pi M}$
$v_{mp}=\sqrt{2RT/M}$
$v_{sound}=\sqrt{3RT/2M}$
A->3,B->4,C->2,D->1