Oxygen molecules will move from an area of high concentration to an area of low concentration.
Here's why:
* Diffusion is the movement of particles from a region of high concentration to a region of low concentration. This movement is driven by the natural tendency for molecules to distribute themselves evenly throughout a space.
* Oxygen is a gas, and gas molecules are constantly in motion, randomly colliding with each other and with the walls of their container.
* When there is a difference in concentration of oxygen, the molecules will move from the area where they are more concentrated (higher pressure) to the area where they are less concentrated (lower pressure).
In summary: Oxygen molecules move from high concentration to low concentration during diffusion due to their random motion and the natural tendency to distribute themselves evenly.
