Question 307: Thermodynamics & KTG

Question

The rms speeds of the molecules of Hydrogen, Oxygen and Carbon dioxide at the same temperature are V
H
, V
O
and V
C
respectively then :

Accepted Answer

$${V_{RMS}} = \sqrt {{{3RT} \over {{M_W}}}} $$
At the same temperature $${V_{RMS}} \propto {1 \over {\sqrt {{M_W}} }}$$
$$\Rightarrow$$ V
H
> V
O
> V
C
Option (a)

Answer

V
H
> V
O
> V
C

Answer

V
C
> V
O
> V
H

Answer

V
H
= V
O
> V
C

Answer

V
H
= V
O
= V
C

Thermodynamics & KTG

The rms speeds of the molecules of Hydrogen, Oxygen and Carbon dioxide at the same temperature are V H , V O and V C respectively then :

Choose the correct answer: