👉 A fluid, in the context of physics and chemistry, is a substance that takes the shape of its container while maintaining a constant volume. The accepted fluid refers to liquids, which are composed of molecules that are closely packed together, allowing them to flow and change shape without losing their identity. Liquids have properties such as viscosity (resistance to flow) and surface tension, which are influenced by intermolecular forces. Examples of accepted fluids include water, oil, and mercury, each with unique characteristics that set them apart from gases.
