De – Broglie wavelength of O_2

[Pushoam]

Homework Statement

Homework Equations

The Attempt at a Solution

[/B] De – Broglie wavelength of $O_2$ molecule is $\lambda = \frac h p$

Assuming that the speed of molecule is small enough to take non – relativistic calculation,

$\frac { p^2}{2m} = \frac { 3 k_B T }2$

$\lambda = 2.6 * 10^{-11}~ m$

So, the correct option is (a).

 

[kuruman]

Looks right.

 

[Pushoam]

Thanks.