Question

What is the process where atoms or molecules move due to random thermal movement?

1) Diffusion
2) Osmosis
3) Evaporation
4) Brownian motion

Answer 1

Diffusion is the process where molecules spread from an area of high concentration to low concentration due to random thermal motion, leading to dynamic equilibrium.

Step-by-step explanation:

The process where atoms or molecules move due to random thermal movement is known as diffusion. This process is crucial for the spread of substances through a solution or gas and is driven by the constant, random, thermal motion of molecules. In diffusion, molecules move from an area of higher concentration to an area of lower concentration, ultimately reaching a dynamic equilibrium where there is no net movement of molecules from one area to another, despite their continuous motion.