👉 A fluid, in its most basic form, is a substance that takes the shape of its container while retaining its chemical composition. Fluids can be liquids or gases and are characterized by their ability to flow and fill any space without maintaining a fixed shape. This unique property stems from the relatively weak intermolecular forces between fluid molecules, allowing them to move freely past one another. Examples of fluids include water, oil, and air, each with distinct properties that influence their behavior, such as viscosity, density, and surface tension. Understanding the components of fluids is crucial in various scientific and engineering fields, as it helps explain phenomena like capillary action, diffusion, and pressure dynamics.
