State T/F
1.Gases are rigid while solids and liquids are fluids
2. Solids have definite shape but no fixed volume
Both are false.
Gases are not rigid because their shape can be changed by applying pressure. And solids have fixed volume
1. False. Gases are not rigid, as they can freely flow and take the shape of their container. Solids and liquids, on the other hand, are considered fluids because they can flow and deform under applied shear stress.
To understand why this statement is false, one can recall the properties of gases, solids, and liquids. Gases consist of individual particles that are far apart and move freely in all directions. Due to their high kinetic energy and weak intermolecular forces, gases take the shape of their container and easily compress and expand. Solids, on the other hand, have rigid structures with closely packed particles that vibrate around fixed positions. This arrangement gives solids a definite shape and a fixed volume, as they maintain their shape and cannot be easily compressed or expanded. Liquids have a similar closely packed structure as solids, but the particles have more freedom to move and slide past one another, allowing liquids to flow and take the shape of their container.
2. False. Solids have both a definite shape and a fixed volume.
To understand why this statement is false, one can recall the properties of solids. Solids have a tightly packed and ordered arrangement of particles that vibrate around fixed positions. This arrangement gives solids a definite shape, meaning they maintain a specific shape even when subjected to external forces. Additionally, solids have a fixed volume since the particles are closely packed and cannot be easily compressed or expanded.