Respuesta :
Answer: The mixing of gas molecules due to random motion (a)
Explanation:
The molecules and the particles of the substances move due to diffusion. It involves the mixing of gas molecules due to random motion. Thus, option A is correct.
What is diffusion?
Diffusion is the process of spreading and mixing the particles of the matter from a region of high to lower concentration. The process of diffusion depends on pressure and concentration.
The molecule passes from a higher region of concentration by passing a membrane to a region that has a lower region of the gaseous particles.
The concentration gradient plays an important role in the diffusion and is a random movement that allows the net flow of the particles based on the concentration of the solute.
Therefore, option A. the mixing of molecules due to random motion is diffusion.
Learn more about diffusion here:
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