Which of the following statements about matter is not correct?
Answer Details
The statement "Molecules of solids move more freely than molecules of liquids and gases" is not correct. In fact, molecules of solids are held tightly in a fixed position, while molecules of liquids and gases have more freedom of movement.
In a solid, the molecules are tightly packed together and held in a fixed position by intermolecular forces. This is why solids have a fixed shape and volume. In liquids, the molecules are still held together by intermolecular forces, but they have more freedom to move around and slide past each other. This is why liquids have a fixed volume but not a fixed shape. In gases, the molecules are widely spaced apart and move freely in all directions. This is why gases have neither a fixed shape nor a fixed volume.
The other statements are all correct. Molecules of solids are more closely packed than those of liquids, energy is required to break the intermolecular forces of attraction between molecules, and molecules of liquids move about within the liquid and they are in constant motion.