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which state of matter has no definite volume or shape?

The state of matter that has no definite volume or shape is gas.

Quick Scoop: Core Idea

  • A gas spreads out to completely fill any container it is in, no matter the container’s shape or size.
  • Because of this, a gas has no definite shape and no definite volume.

How It Compares

  • Solid : definite shape and definite volume (like an ice cube).
  • Liquid : definite volume but no definite shape; it takes the shape of its container (like water in a glass).
  • Gas : no definite shape and no definite volume; it expands to fill all available space (like air in a room or steam above boiling water).

Why Gas Behaves This Way

  • Gas particles are far apart and move very fast in all directions, so they can spread out and fill any space they can reach.
  • Because they are so spread out, gases are also easily compressible (you can squeeze them into a smaller volume, like in a gas cylinder).

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