JEE MAIN - Physics (2021 - 26th August Morning Shift - No. 14)
The rms speeds of the molecules of Hydrogen, Oxygen and Carbon dioxide at the same temperature are VH, VO and VC respectively then :
VH > VO > VC
VC > VO > VH
VH = VO > VC
VH = VO = VC
توضیح
$${V_{RMS}} = \sqrt {{{3RT} \over {{M_W}}}} $$
At the same temperature $${V_{RMS}} \propto {1 \over {\sqrt {{M_W}} }}$$
$$\Rightarrow$$ VH > VO > VC
Option (a)
At the same temperature $${V_{RMS}} \propto {1 \over {\sqrt {{M_W}} }}$$
$$\Rightarrow$$ VH > VO > VC
Option (a)