physical property
Measurable matter trait
A physical property is a characteristic of matter that can be observed or measured without changing its chemical composition.
Density, color, melting point, and electrical conductivity are physical properties—you can measure them without turning one substance into another.
Contrast with chemical properties, which describe how substances react: flammability, acidity, reactivity with water.
- elasticityTendency to resume original form
- resistivityMaterial's inherent current opposition
- hardnessResistance to penetration
- melting pointLiquefaction threshold temperature
- thermal massMaterial storing thermal energy
boiling point · flash point · transparency · capacitance · permeability · grain size · ductility · malleability · toughness · opacity · brittleness · wettability · solubility · reflectivity · surface tension · density · inductance · color temperature
physical propertychemical property
Characteristic observed during reactions
reactivity · flammability · corrosiveness · toxicity · electronegativity
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