Diffusion is an important process, which is involved in the different life processes. The molecules collide with each other and change the direction. Diffusion, in fact, can even take place in solids. Diffusion occurs when particles move from an area of high concentration to an area of low concentration. Diffusion in Solids, Liquids, Gases and Jelly. (View the animation below to compare diffusion in gases and liquids.) Liquid and gases undergo diffusion as the molecules are able to move randomly. Faster movement equals faster diffusion. Name the three things that can accelerate diffusion. This class practical shows that diffusion takes place in liquids. Osmosis can take place only in a liquid medium. Diffusion is the movement of particles from a high concentration to a low concentration. This practical activity takes around 30 minutes. INTRODUCTION. This property of diffusion takes place very rapidly in case of gases and to a lesser extent in case of liquids, whereas solids do not show this process of diffusion with each other. The coloring slowly spreads out in the liquid until it is evenly spaced. (Solved) Describe an experiment to show how diffusion of a heavy carbon dioxide gas occur in an upward direction. The factors affecting rate of diffusion are: concentration, temperature, mass of the particle and properties of the solvent in which diffusion occurs. Diffusion in liquids is proportional to temperature, as it is in gases, as well as to the viscosity of the specific liquid into which the material is diffusing. Solid, liquid or gas, diffusion can take place in any of these media. No requirement of semi-permeable membrane for diffusion to occur. Explain how the diffusion rates of ammonia and hydrogen chloride gases can be compared. When substances are brought in contact with each other they intermix, this property is known as Diffusion. to explain what the phenomenon of diffusion in liquids and solids consists in; to give examples of diffusion in everyday life; to explain the phenomena of diffusion, dissolution, mixing, … Background information Diffusion in liquids: When substances dissolve in liquids (like salt dissolving in water) the substances spread out.We call this spreading out of dissolved particles diffusion.The end result of this is that the solute particles that have dissolved in water will spread out evenly. 3. Lesson organisation. Semi-permeable membrane is a must for osmosis to take place. Date posted: April 12, 2019. The kinetic theory of matter is also illustrated by the process of diffusion. The molecules of … Explain diffusion in liquids. Diffusion and osmosis are both spontaneous in nature, which simply means that they occur without the assistance of any type of outside energy. Study of Diffusion of solids in liquids. Diffusion. There is the … 2. Students place colourless crystals of lead nitrate and potassium iodide at opposite sides of a Petri dish of deionised water. Heat, pressure, and movement. It can be seen as a spreading-out of particles resulting in their even distribution. “Osmosis” essentially refers only to the movement of water which is in a liquid state, but the term “diffusion” can also mean the movement of molecules either in a gaseous or a liquid state. As mentioned above, it is the net movement of particles, ions, molecules, solution, etc. As they dissolve and diffuse towards each other they form clouds of yellow lead iodide. Significance of Diffusion. Answers (1) Describe an experiment to show how diffusion of a heavy carbon dioxide gas occur in an upward direction. The diffusion of liquids can be seen in the kitchen anytime you mix a drink or add food coloring to something. Relative to their size, molecules of a gas are very far apart. 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