vaihetila
Vaihetila is a Finnish term that translates to "phase state" or "state of matter." It refers to the distinct physical forms that matter can exist in. The most common vaihetilat are solid, liquid, and gas. In a solid vaihetila, particles are tightly packed and have a fixed shape and volume. In a liquid vaihetila, particles are still close but can move past each other, resulting in a definite volume but an adaptable shape. In a gas vaihetila, particles are far apart and move randomly, with no fixed shape or volume.
Transitions between these vaihetilat occur when energy is added or removed. For example, heating a solid can
Beyond the common three, other vaihetilat exist. Plasma is often considered a fourth state of matter, consisting