which state of matter has a definite shape and a definite volume?
Which state of matter has a definite shape and a definite volume?
Answer: The state of matter that has a definite shape and a definite volume is the solid state.
Explanation:
1. Solid State:
- Definite Shape: Solids have a fixed shape that does not change unless an external force is applied. This is because the particles (atoms or molecules) in a solid are closely packed together in a fixed arrangement.
- Definite Volume: Solids also have a fixed volume, meaning they do not expand to fill a container. The particles are held together by strong intermolecular forces, which keep them in a specific volume.
2. Comparison with Other States of Matter:
- Liquids: Liquids have a definite volume but no definite shape. They take the shape of the container they are in. The particles in a liquid are close together but can move past one another, allowing the liquid to flow.
- Gases: Gases have neither a definite shape nor a definite volume. They expand to fill the entire space available to them. The particles in a gas are far apart and move freely.
- Plasma: Plasma, like gases, does not have a definite shape or volume. It is an ionized state of matter found in stars, including the sun.
In summary, the solid state is characterized by having both a definite shape and a definite volume due to the fixed positions of its particles and the strong intermolecular forces holding them together.