https://en.wikipedia.org/wiki/Diffusion
Diffusion is the net movement of anything (for example, atoms, ions, molecules, energy) generally from a region of higher concentration to a region of lower concentration. Diffusion is driven by a gradient in Gibbs free energy or chemical potential.

https://www.britannica.com/science/diffusion
Diffusion is the random motion of molecules that causes matter to flow from high to low concentration. Learn how diffusion works, see examples, and explore the diffusion equation and related topics such as osmosis and thermal diffusion.

https://biologydictionary.net/diffusion/
Learn what diffusion is, how it occurs and what factors affect it in biological and chemical systems. See examples of diffusion in cells, liquids, gases and reactions.

https://www.merriam-webster.com/dictionary/diffusion
Learn the various meanings and uses of the word diffusion, from chemistry and physics to language and culture. See synonyms, examples, word history, and related entries.

https://www.bbc.co.uk/bitesize/topics/zych6g8/articles/znqbcj6
Learn what diffusion is and how it happens in gases, liquids and solids. See examples of diffusion in action, such as smells, drinks and coffee, and find out how temperature and type of substance affect diffusion.

https://www.khanacademy.org/science/biology/membranes-and-transport/diffusion-and-osmosis/v/diffusion-video
Transcript. Diffusion occurs when particles move from an area of high concentration to low concentration, creating a concentration gradient. This natural, energy-free process occurs due to the random movement of particles, with a higher chance of particles moving from the high concentration side. Over time, this leads to an equilibrium state

https://www.sciencefacts.net/diffusion.html
Learn what diffusion is and how it occurs in different conditions and media. Explore the examples, types and factors that affect diffusion, and its importance in cellular processes.

https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/Book%3A_General_Biology_(Boundless)/05%3A_Structure_and_Function_of_Plasma_Membranes/5.06%3A_Passive_Transport_-_Diffusion
Diffusion is a passive process of transport. A single substance tends to move from an area of high concentration to an area of low concentration until the concentration is equal across a space. You are familiar with diffusion of substances through the air. For example, think about someone opening a bottle of ammonia in a room filled with people

https://www.khanacademy.org/science/ap-biology/cell-structure-and-function/mechanisms-of-transport-tonicity-and-osmoregulation/v/diffusion-and-osmosis
Learn about diffusion, the movement of molecules from high to low concentration, and osmosis, the diffusion of water across a semi-permeable membrane. Watch a video and see examples, questions and answers, and tips from other learners.

https://brilliant.org/wiki/diffusion/
Learn about diffusion, the process by which concentration differences even out over time due to random movements. Explore the basic diffusion equation, its solutions, and various modifications like injection, absorption, and drift.

https://www.thoughtco.com/what-is-diffusion-3967439
Diffusion is the passive movement of molecules from an area of high concentration to an area of low concentration. It occurs in gases, liquids, and cells, and is involved in respiration, photosynthesis, and osmosis.

https://www.khanacademy.org/science/ap-biology/cell-structure-and-function/facilitated-diffusion/a/diffusion-and-passive-transport
Learn how substances move across cell membranes by diffusion, a process that does not require energy and follows concentration gradients. Explore the roles of channels and carrier proteins in facilitated diffusion.

https://byjus.com/biology/diffusion/
Learn what is diffusion, the movement of molecules from a region of higher concentration to a region of lower concentration. Explore the types, factors, examples and significance of diffusion in biology, physics and chemistry.

https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/Book%3A_Introductory_Biology_(CK-12)/02%3A_Cell_Biology/2.13%3A_Diffusion
Diffusion is the movement of molecules from an area of high concentration of the molecules to an area with a lower concentration. The difference in the concentrations of the molecules in the two areas is called the concentration gradient. Diffusion will continue until this gradient has been eliminated. Since diffusion moves materials from an

https://chem.libretexts.org/Bookshelves/Physical_and_Theoretical_Chemistry_Textbook_Maps/Supplemental_Modules_(Physical_and_Theoretical_Chemistry)/Kinetics/09%3A_Diffusion
1392. Diffusion can be described as the random movement of particles through space, usually due to a concentration gradient. Diffusion is a spontaneous process and is a result of the random thermal motions between two particles. The diffusion coefficient ( D) can be solved for with Fick's laws of diffusion, which are broken up into two laws.

https://www.bbc.co.uk/bitesize/topics/znyycdm/articles/z8cqqfr
Learn how diffusion is the movement of particles from higher to lower concentrations in liquids and gases. See how diffusion happens in and within cells, and how oxygen, carbon dioxide and glucose move by diffusion in the body.

https://www.biologyonline.com/dictionary/diffusion
Diffusion in Physics, Chemistry, and Biology. Diffusion in physics is the movement of particles from an area of higher concentration to an area of lower concentration as driven by thermal energy. (1) This definition is affirmed as well in chemistry. The particles suspended in liquids and gases, for instance, struck each other resulting in their random constant motion.

https://phys.libretexts.org/Bookshelves/University_Physics/Physics_(Boundless)/12%3A_Temperature_and_Kinetic_Theory/12.9%3A_Diffusion
12.9: Diffusion. Diffusion is the movement of particles move from an area of high concentration to an area of low concentration until equilibrium is reached. A distinguishing feature of diffusion is that it results in mixing or mass transport without requiring bulk motion. Thus, diffusion should not be confused with convection or advection

https://www.thoughtco.com/definition-of-diffusion-604430
Diffusion is the movement of particles from high to low concentration due to thermal energy. Learn how diffusion works, see examples of diffusion in everyday life and compare it with other transport processes.

https://bio.libretexts.org/Learning_Objects/Worksheets/Biology_Tutorials/Diffusion_and_Osmosis
1. Description of Diffusion and Osmosis. A water solution that contains nutrients, wastes, gases, salts and other substances surrounds cells. This is the external environment of a cell. The cell's outer surface of the plasma membrane is in contact with this external environment, while the inner surface is in contact with the cytoplasm.

http://hyperphysics.phy-astr.gsu.edu/hbase/Kinetic/diffus.html
Rate of Diffusion Since the average kinetic energy of different types of molecules (different masses) which are at thermal equilibrium is the same, then their average velocities are different. Their average diffusion rate is expected to depend upon that average velocity, which gives a relative diffusion rate. where the constant K depends upon geometric factors including the area across which

https://dictionary.cambridge.org/dictionary/english/diffusion
Learn the meaning of diffusion in different contexts, such as science, business, and communication. Find out how diffusion works in gases, liquids, solids, cells, and light.

https://sciencenotes.org/osmosis-vs-diffusion-definition-and-examples/
Learn the differences and similarities between osmosis and diffusion, two types of mass transport processes. Osmosis is the movement of solvent across a semipermeable membrane, while diffusion is the movement of solvent and solute from higher to lower concentration.