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Relative density, also called specific gravity, is the ratio of the density of a substance to the density of a reference material. Learn how to calculate relative density, how it relates to buoyancy and concentration, and what are the common symbols and units for this quantity.
Learn what is relative density, how to calculate it and why it is important for floating and sinking of substances. Explore the difference between density and specific gravity, and the Archimedes principle with examples and FAQs.
Oct 4, 2023 · Learn what relative density is, how to calculate it, and how it differs from density. Find out the relative density values of various materials and the factors that affect them.
- It is the ratio of the density of a substance to the density of the reference material.
- Relative density is a dimensionless quantity; it does not have an SI unit.
- \(Relative\ density = \dfrac{\rho_{sub}}{\rho_{ref}}\)is the formula for relative density.
- There is no difference between relative density and specific gravity; they are one and the same.
- The relative density of water is \(1000 kg/m^3\)
- Relative Density Formula
- Si Unit of Relative Density
- Applications of Relative Density
- Factors Affecting Measurement of Relative Density
- Measurement of Relative Density
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The density of the substances varies with pressure and temperature so it is necessary to specify the pressure and the temperatures at which the densities and the masses are to be determined. It is said that measurements are done mostly at 1 atmosphere which is 101.325 kPa ignoring the variations caused by changing weatherpatterns and external affai...
Since relative density is the ratio of two same quantities, therefore there is no SI unit of relative density. Relative density is a dimensionless quantity.
The major application of relative density is in the petroleum industry where the products obtained are mostly based on the measurements done according to the relative densities of the liquids under...Heavy molecular weight hydrocarbons can be converted to low molecular weight hydrocarbons such as gasoline, jet fuel, and diesel based on the chemical processes involving the measurements based on...It is used for determining the density of an unknown substance from the known density of another substance.It is also used by geologists to find out the mineral content of the rock.Air Bubbles: A small bubble with a diameter of 1 mm can yield a 0.5 mg increase and those with 2 mm can yield a 4 mg increase. So, make sure that the solid object or sinker immersed in the liquid i...Solid Matter Sample:A sample with a very large volume immersed in thefluid will result in an increase in the level of fluid within the pitcher of the glass.Temperature:Solids are generally not affected by temperature changes so that the corresponding density changes are not relevant. However, according to the Archimedes Principle, while determining th...Hydrometer:It is an instrument that is used to determine the relative density or specific gravity. It works on the model of the Archimedes Principle. Archimedes' principle states that any body, whi...Pycnometer:This device is used to determine the specific gravity of various liquids. The steps to determine the relative density of a liquid requires measurement of the empty flask first. The flask...Relative density is the ratio of the density of a substance to the density of a standard substance, usually water. Learn how to measure relative density, its applications in petroleum industry and geology, and solved examples of density and relative density.
Mar 18, 2019 · Relative density (RD) is the ratio of the density of a substance to the density of water. Learn how to calculate RD, see examples, and find out how it differs from density and specific gravity.
- Anne Marie Helmenstine, Ph.D.
May 10, 2019 · 2019 May 10. Let's explore what relative density is. More free lessons & practice - https://www.khanacademy.org/science/i... Khan Academy is a nonprofit organization with the mission of providing ...
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Learn the definitions, formulas and examples of relative density and specific gravity, two dimensionless quantities that measure the density of a substance relative to water. Find out how to calculate the density of a material from its mass and volume.
