Diffusion in liquids occurs when molecules move from an area of higher concentration to an area of lower concentration. This is due to the random motion of molecules and is driven by the concentration gradient.
Evaporation is an example of diffusion in liquids. When a liquid evaporates, molecules at the surface gain enough energy to escape and enter the gas phase. This leaves a lower concentration of molecules at the surface, causing more molecules to diffuse from the bulk liquid to the surface.
As temperature increases, the kinetic energy of molecules also increases. This leads to a higher rate of diffusion in liquids, as molecules have more energy to move and overcome intermolecular forces.
The rate of diffusion in liquids is affected by the temperature, size and shape of molecules, and the viscosity of the liquid. Higher temperatures, smaller molecules, and lower viscosity all lead to a higher rate of diffusion.
Yes, diffusion in liquids can be observed in everyday life. For example, when you pour a drop of food coloring into a glass of water, you can see the dye molecules diffusing throughout the water. Another example is when you add sugar to a cup of tea, the sugar molecules diffuse from an area of higher concentration (the sugar cube) to an area of lower concentration (the tea).