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As per available reports about 46 Conferences, 12 Workshops, and 16 relevant Journals are presently dedicated exclusively to Physical Properties and about 36 articles are being published on Physical Properties.
Physical Property: A physical property is one that is displayed without any change in composition. Physical properties are any properties of matter which can be perceived or observed without changing the chemical identity of the sample
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Scope and Importance:
A physical property is a characteristic that can be observed or measured without changing the composition of the sample. Physical properties can be used to describe mixtures as well as pure substances. Because these pure substances have uniform and unchanging compositions they also have consistent and unchanging physical properties.
Physical properties may be defined as any property which can be measured and whose value describes a state of a physical system. The changes in the physical properties will change the system and this change can be used to describe its transformations or evolutions between its momentary states. Physical properties are often referred to as observables.
Physical properties are generally classified into 2 types:
• Intrinsic properties: It as a bulk property, which means that it doesn’t depend on size of the system and amount of material present in the system. Examples of intensive properties include temperature, refractive index, density, and hardness of an object.
• Extrinsic properties: In contrast to the intrinsic properties, extrinsic properties are additive in nature for independent, non-interacting subsystems. Extrinsic properties are proportional to the amount present in system. Examples include mass and volume.
The ratio of two extensive properties is scale-invariant, and is therefore an intensive property.
The renowned physical properties that can change the system drastically are:
• Electric charge: It is the physical property of matter that exerts force when placed in an electromagnetic field.
• Electrical conductivity: It is a measure of a material's ability to conduct an electric current.
• Electric field: It describes the electric force experienced by a motionless charged test particle at any point in space relative to the source(s) of the field.
• Boiling point: It is a temperature of a substance which the vapor pressure of the liquid equals the atmospheric pressure.
• Dielectric polarization: A dielectric material is an electrical insulator that can be polarized by an applied electric field. When a dielectric is placed in an electric field, electric charges do not flow through the material as they do in a conductor, but only slightly shift from their average equilibrium positions causing dielectric polarization.
• Elasticity: It is the tendency of solid materials to return to their original shape after being deformed. No material can become 100% elastic in nature. Solid objects will deform when forces are applied on them. If the material is elastic, the object will return to its initial shape and size when these forces are removed.
• Melting Point: It is the temperature of any solid at which it changes its phase from solid to liquid.
• Refractive index: In optics, refractive index of a substance (optical medium) is a dimensionless number that describes how light, or any other radiation, propagates through that medium.
The global market for contract pharmaceutical manufacturing, research and packaging totaled $248.5 billion in 2014 and is projected to approach $352.8 billion by 2019, registering a compound annual growth rate (CAGR) of 7.3% through 2019.
Relevant Society and Associations:
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This page was last updated on 15th Sep, 2015
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