Properties of matter

by

Properties of matter

Matter is anything that has mass and takes up space. At a minimum, matter requires at least one subatomic particle, although most matter consists of atoms.

The two properties of matter are: • Mass – amount or quantity of matter • Volume – amount of space occupiedphysical properties – inherent characteristics of a substance

 Electrical conductivity :-he degree to which a specified material conducts electricity, calculated as the ratio of the current density in the material to the electric field which causes the flow of current

 Heat conductivity :-the rate at which heat passes through a specified material, expressed as the amount of heat that flows per unit time through a unit area with a temperature gradient of one degree per unit distance.

 Density :-is defined as mass per unit volume,it is the the degree of compactness of a substance.

 Melting point:-The melting point (or, rarely, liquefaction point) of a solid is the temperature at which it changes state from solid to liquid at atmospheric pressure. At the melting point the solid and liquid phase exist in equilibrium.

 Boiling point:-the temperature at which the vapor pressure of aliquid is equal to the pressure of the atmosphere on the liquid, equal to 212°F (100°C) for water at sea level.

 Index of refraction :-is a dimensionless number that describes how light propagates through that medium.

 Malleability :-is a physical property of metals that defines the ability to be hammered, pressed, or rolled into thin sheets without breaking.

 Ductility:- is the ability to deform under tensile stress; this is often characterized by the material’s ability to be stretched into a wire.

 Pressure:-is the force per unit area.

 Buoyancy:-is an upward force exerted by a fluid that opposes the weight of an immersed object. In a column of fluid, pressure increases with depth as a result of the weight of the overlying fluid.

 Surface Tension:- is the tension of the surface film of a liquid caused by the attraction of the particles in the surface layer by the bulk of the liquid, which tends to minimize surface area.

 Stress, Strain and Elasticity :-Stress is force per unit area.Strain is the deformation of a solid due to stress.Elasticity is the ability of an object or material to resume its normal shape after being stretched or compressed.chemical properties – the ability of a substance to form new substance either by reaction or by decomposition

 Heat of combustion

 Chemical stability and reactivity

 Flammability

 Oxidation state

Final Destination for Kerala PSC Notes and Tests, Exclusive coverage of KPSC Prelims and Mains Syllabus, Dedicated Staff and guidence for KPSC Kerala PSC  Notes brings Prelims and Mains programs for Kerala PSC  Prelims and Kerala PSC  Mains Exam preparation. Various Programs initiated by Kerala PSC  Notes are as follows:- For any doubt, Just leave us a Chat or Fill us a querry––