What is Diffusion?, Diffusion is the movement of particles (atoms, ions, or molecules) from a region of higher concentration to a region of lower concentration. This process continues until the particles are evenly distributed throughout the space., Why is diffusion fast in gases?, Diffusion is fast in gases because gas particles have large spaces between them and move at high speeds., Why does the smell of hot sizzling food reach you several meters away, but to get the smell from cold food you have to go close?, The rate of diffusion increases with an increase in temperature because particles gain more kinetic energy. Particles of hot food move faster and cover more distance, whereas cold food particles have less kinetic energy and do not diffuse as quickly., List the factors affecting the rate of diffusion., ✮Temperature: Higher temperature increases the rate.✮Density of Particles:Lighter particles diffuse faster✮Distance: Shorter distances allow faster diffusion., State the importance of diffusion in living cells., ✮It helps in the exchange of gases like Oxygen (O2) and Carbon dioxide (CO2) during respiration.✮It helps in removing waste products from the cells..

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