👉 A sequence fluid is a type of fluid that exhibits properties of both liquids and gases, transitioning between the two states depending on external conditions such as temperature and pressure. Unlike traditional liquids or gases, sequence fluids can flow like a liquid under certain conditions but behave more like a gas when subjected to higher pressures or lower temperatures. This unique behavior arises from the molecular structure and interactions within the fluid, allowing it to adapt its viscosity and density dynamically. For example, certain colloids and supercritical fluids can act as sequence fluids, changing their fluidity and solubility characteristics based on the surrounding environment. This adaptability makes sequence fluids particularly useful in various industrial and scientific applications, such as in the extraction processes of natural products and the development of advanced materials.