1. You can smell perfume because it diffuses into the air and makes its way into your nose. 2. In leaves, oxygen from the leaf cells diffuses out to the air.

Gaseous particles are in constant random motion. Gaseous particles tend to undergo diffusion because they have kinetic energy. Diffusion is faster at higher temperatures because the gas molecules have greater kinetic energy. Effusion refers to the movement of gas particles through a small hole.

This is true in gases and for particles dissolved in solutions – but diffusion does not occur in solids. Particles diffuse down a concentration gradient, from an area of high concentration to an area of low concentration.

Diffusion is driven by differences in concentration. When chemical substances such as perfume are let loose in a room, their particles mix with the particles of air. Diffusion in gases is quick because the particles in a gas move quickly. It happens even faster in hot gases because the particles of gas move faster.

diffusion, process resulting from random motion of molecules by which there is a net flow of matter from a region of high concentration to a region of low concentration. A familiar example is the perfume of a flower that quickly permeates the still air of a room.

Diffusion is the movement of a substance from an area of high concentration to an area of lower concentration . Diffusion occurs in liquids and gases when their particles collide randomly and spread out. Diffusion is an important process for living things – it is how substances move in and out of cells.

Diffusion occurs quickly in a gas than in a liquid because the space between the constituent particles in gases are higher than in liquids. Thus particles in gas possess higher kinetic energy and move with higher speeds.

In gases and liquids, particles move randomly from place to place . The particles collide with each other or with their container. This makes them change direction . Eventually, the particles are spread through the whole container. Diffusion happens on its own, without stirring, shaking or wafting.

Mixing molecules of one gas with molecules of another gas is called diffusion. Smell of a perfume or meal in a room are some common examples of diffusion of gases. Gases have different diffusion rates at different temperatures.

Diffusion is the gradual mixing of gases due to the motion of their component particles even in the absence of mechanical agitation such as stirring. The result is a gas mixture with uniform composition.