Even while both density and specific gravity are used to compare various substances and indicate mass, there is a distinct distinction between the two. A ratio of mass to unit volume of matter can be used to express the property of matter known as density. Relative density, often known as specific gravity, is a measurement of density in relation to the density of pure water. Water has a wide range of characteristics, including conductivity, among many others.
Density
The density of a substance indicates how dense it is in a given area. Mass per unit volume is the definition of a material’s density. In essence, density is a measurement of how closely stuff is packed. It is a particular physical characteristic of a specific thing. The Greek scientist Archimedes made the discovery of the density principle. If you are familiar with the formula and the relevant units, calculating density is simple. The letter D can also be used to signify density instead of the symbol.
Examples
Dense materials include those made of iron, platinum, and lead. Dense stuff includes a wide variety of rocks and minerals. Dense objects are more likely to “feel” weighty or hard. Glass, bamboo, aluminum, and styrofoam are a few examples of sparse materials, which are the opposite of dense.
Generally speaking, gasses are less dense than liquids, while liquids are less dense than solids. This is a result of the fact that particles in solids are closely packed, those in liquids can slide past one another, and those in gasses are unconstrained in their motion.
Specific Gravity
Specific The ratio of a substance’s density to the density of water at a certain temperature is what is known as gravity, sometimes known as relative gravity, and it is stated as
Since water has the maximum density at degree celsius (), this temperature is frequently used as a benchmark.
The specific gravity of gasses is often determined in relation to air. The ratio of a gas’s density to that of air at a certain temperature and pressure is known as the gas’ specific gravity. At standard temperature, air has a density of
As was previously mentioned, specific gravity is a measurement of an object’s density in relation to the density of water at a precise temperature and pressure. The density of items and liquids is impacted by changes in pressure and temperature, which has an impact on the specific gravity of those same objects and liquids. The specific gravity of an object is calculated under standard conditions of temperature and pressure. The specific gravity will alter if extraneous factors are not controlled.
Applications
Few of the applications of Specific Gravity are mentioned below:
- By contrasting the gem’s specific gravity with another gem whose high purity level has already been measured, one can ascertain the gem’s purity. This makes it possible to ascertain the gem’s worth very rapidly.
- Geologists and mineralogists utilize specific gravity to estimate the rock’s mineral composition.
- The concentration of solutes in the urine is gauged by its specific gravity. It is a standard component of a urinalysis.
Difference between Density and Specific Gravity
| Density | Specific Gravity |
|---|---|
| It is the object’s mass divided by its volume. | The weight of a material in relation to the weight of the same volume of water is known as its relative density. |
| We need to know the substance’s weight and volume in order to determine density. | By dividing a substance’s density by the density of water, we may determine this. |
| It is described in terms of absolutes. | It is described in terms of relativity. |
| Its symbol, , stands for kilograms per cubic meter. | There is no SI unit for it. |
| It has numerous domestic and professional uses. | It is employed in industries to gauge solution concentration. |
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Density is the measurement of a compactness of material. Specific Gravity Archimedes Difference Between Density and Specific Gravity FAQs
Define density.
Among density and specific gravity, which one of them is a dimensionless quantity?
Who discovered the principle of density?
