What is relative density?
Answers
Explanation:
Relative density, or specific gravity, is the ratio of the density of a substance to the density of a given reference material. Specific gravity for liquids is nearly always measured with respect to water at its densest; for gases, the reference is air at room temperature.
Answer:
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ANSWER:-
Density is a word we use to describe how much space an object or substance takes up (its volume) in relation to the amount of matter in that object or substance (its mass). Another way to put it is that density is the amount of mass per unit of volume. If an object is heavy and compact, it has a high density.
Relative density:
Relative density (also known as specific gravity) is a measure of the density of a material. It is dimensionless, equal to the density of the material divided by the density of water (or, sometimes used for gases, of air).
It is usually measured at room temperature (20 Celcius degrees) and standard atmosphere (101.325kPa). It is unitless.
Relative density has no unit because it is the ratio of same units which gets cancelled. Answer: ... Relative density = Density of the substance/Density of water at 4°C. As both the numerator and the denominator on the RHS of the above formula has the same unit (i.e. kg/m3) they get cancelled.