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Which statement is true for solid matter?
Solids do not have a definite shape, distinct boundary and fixed volume.
Solids have only definite shape, but not fixed volume.
Solids have only definite shape, but not distinct boundary.
Solids have a definite shape, distinct boundary and fixed volume.
Solids have a definite shape, distinct boundary and fixed volume.
Solid matter is characterized by strong intermolecular forces that hold particles in a fixed, rigid arrangement. Consequently, solids possess a definite shape, a fixed volume, and distinct boundaries that do not change under normal conditions.
Solid matter is characterized by strong intermolecular forces that hold particles in a fixed, rigid arrangement. Consequently, solids possess a definite shape, a fixed volume, and distinct boundaries that do not change under normal conditions.
Think of a solid like a tightly packed carton of eggs; every egg has a specific, fixed position in the carton, and you cannot easily change the shape or volume of the carton without applying significant force.
S.V.B. = Solid (fixed) Shape, Volume, Boundary.
FintermolecularтАЛтЙлEthermalтАЛ тАФ The condition required for the solid state
The state of matter is determined by the balance between intermolecular attractive forces (which pull particles together) and thermal energy (which causes particles to move). In solids, the intermolecular forces are significantly stronger than the kinetic energy of the particles, restricting their motion to simple vibrations about fixed equilibrium positions. This lack of translational motion gives solids their rigid structure and fixed macroscopic properties.
Solids have negligible compressibility.
Particles in a solid have minimum kinetic energy.
Solids maintain their shape without the need for a container.
Distinct boundaries allow solids to be handled and stacked.
High structural integrity for construction and engineering.
Predictable mechanical behavior.
Low ability to flow, unlike liquids or gases.
Can be brittle or rigid, prone to fracturing under extreme stress.
Building materials (steel, concrete).
Semiconductor components in electronics.
| Feature | Solid | Fluid |
|---|---|---|
Property | Solids | Liquids/Gases |
The rigidity of a solid is defined by its Young's Modulus.
Option A is incorrect because it describes properties more akin to fluids.
Options B and C are incorrect because they imply inconsistent properties for the solid state.
D is correct тАФ Solids are defined by having a definite shape, distinct boundaries, and a fixed volume.
Always remember the order of intermolecular strength: Solid > Liquid > Gas. This explains why density and compressibility vary across these states.
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