Diffusion physics and chemistry diffusion is the movement of particles from an area of high concentration to an area of low concentration diffusion is not to be confused with osmosis, which is the movement of water through a semi-permeable membrane. Gas diffusion and effusion learning objective explain the concepts of diffusion and effusion key points gaseous particles are in constant random motion gaseous particles tend to undergo diffusion because they have kinetic energy effusion refers to the movement of gas particles through a small hole. Diffusion is the movement of a fluid from an area of higher concentration to an area of lower concentration diffusion is a result of the kinetic properties of particles of matter the particles will mix until they are evenly distributed.
Brownian motion is caused by the impact of fluid molecules or atoms in rapid and random motion from heat on small particles suspended in the fluid brownian motion, which tends to disperse particles as widely as possible, is the major force in diffusion brownian motion occurs in small suspended. Medical definition of diffusion 1 : the process whereby particles of liquids, gases, or solids intermingle as the result of their spontaneous movement caused by thermal agitation and in dissolved substances move from a region of higher to one of lower concentration. Diffusion is the net movement of molecules or atoms from a region of high concentration (or high chemical potential) to a region of low concentration (or low chemical potential) as a result of random motion of the molecules or atoms diffusion is driven by a gradient in chemical potential of the diffusing species. Random motion is defined as movement that occurs by chance because there is no order or regular system by which the movements of the particles shift in a solution or gas.
Diffusion: diffusion is the general process whereby particles of liquids, gases or solids intermingle as the result of their spontaneous movement from regions of higher concentrations to regions of lower concentrations it is sometimes called self-diffusion, molecular diffusion or ionic diffusion and is only important at low velocity. Definition diffusion is the random spreading of particles from areas with higher concentration to areas with lower concentration the time period of this process depends on the diffusion equation. Diffusion and osmosis worksheet diffusion is the movement of particles from areas of higher concentration to areas of lower concentration it is a natural, random process this means that it does not require extra energy input 1a these are pictures of molecules frozen at two different times. The main difference between tyndall effect and brownian motion is that tyndall effect occurs due to the scattering of light by individual particles whereas brownian motion occurs due to the random motion of atoms or molecules in a fluid.
Best answer: a movement of molecules from an area of their higher concentration to an area of their lower concentration diffusion is the net movement of molecules or ions from a region of their high concentration to a region of their low concentrationie down the concentration gradient. Diffusion is a random movement of molecules down the pathway called the concentration gradient molecules are said to move down the concentration gradient because they move from a region of higher concentration to a region of lower concentration. The movement of particles from an area of high concentration to an area of low concentration for diffusion to work, the particles must be able to move around.
A liquid or gas consists of particles----atoms or molecules----that are free to move we shall con- random walk model of diffusion to get a feeling for the physical meaning of diffu- chapter 7 diffusive processes and brownian motion a = the a. Brownian motion definition is - a random movement of microscopic particles suspended in liquids or gases resulting from the impact of molecules of the surrounding medium —called also brownian movement. Diffusion is the movement of ions and other micro molecules acrossa barrier or membrane diffusion is caused by gradients on eitherside of the membrane.
Diffusion the kinetic theory describes a gas as a large number of submicroscopic particles (atoms or molecules), all of which are in constant rapid motion that has randomness arising from their many collisions with each other and with the walls of the container. The random movement of microscopic particles suspended in a liquid or gas, caused by collisions between these particles and the molecules of the liquid or gas this movement is named for its identifier, scottish botanist robert brown (1773-1858. The kinetic particle theory explains the properties of solids, liquids and gases there are energy changes when changes in state occur brownian motion is the random movement of fluid particles.
Diffusion is the process by which molecules move through a substance, seemingly down a concentration gradient, because of the random molecular motion and collision between particles. The term “classical brownian motion” describes the random movement of microscopic particles suspended in a liquid or gas brown was investigating the fertilization process in clarkia pulchella, then a newly discovered species of flowering plant, when he noticed a “rapid oscillatory motion. The process of rapid random movement of the particles of a liquid or gas which eventually form a uniform mixture 2 the mixing of substances due to the motion of their particles. The particles are quite close together but still arranged at random throughout the container due to their random movement, there is a little close range order as you can get clumps of particles clinging together temporarily (as in the diagram above.
Diffusion usually happens in a solution in gas or in a liquid it is possible to see diffusion happening when two liquids are mixed in a transparent container it describes the constant movement of particles in all liquids and gases. Brownian motion is the random movement of particles in a fluid due to their collisions with other atoms or moleculesbrownian motion is also known as pedesis, which comes from the greek word for leaping. Diffusion pertains to the spontaneous net movement of particles down their concentration gradient (ie difference in the concentrations of substances or molecules between two areas) in biology, it is a type of passive transport , therefore, it is a net movement of molecules in and out of the cell across the cell membrane along a concentration. Particles in a fluid (liquid or gas) will move around in random directions and collide with each other and their surroundings when they collide they change direction this random movement will cause them to spread out or diffuse through a liquid, this can be observed through a colour change or by a reaction occurring where two substances meet.