Hey, good to see you again.
Here are the formulas related to Relative Density:
-
Definition:
Relative Density (RD) is the ratio of the density of a substance to the density of a reference substance. It is a dimensionless quantity.
-
Using Densities:
RD = (Density of substance) / (Density of reference substance)
RD = ρ_substance / ρ_reference
-
Using Mass (for the same volume):
RD = (Mass of substance) / (Mass of reference substance for the same volume)
RD = m_substance / m_reference
-
Using Weight (for the same volume):
RD = (Weight of substance) / (Weight of reference substance for the same volume)
RD = W_substance / W_reference
-
Common Reference Substance:
For liquids and solids, the reference substance is usually water at 4°C, which has a density of approximately 1000 kg/m³ or 1 g/cm³.
What's next?