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Question
Distinguish between density and relative density.
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Solution
| Sr. No. | Density | Relative density |
| 1. | It is the ratio of mass to volume. `D = ("Mass")/("Volume") = m/V` |
It is the ratio of the density of a substance to the density of water. |
| 2. | Units are g cm−3 or kg m−3 | It is a pure quantity. It has no units. |
| 3. | Density in kg m−3 = R.D × 1000 | R.D. = Density in g cm−3 `R.D. = ("Density in kg cm"^-3)/1000` |
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