Relative Density

📊 beginner

$$R.D. = \frac{\rho_{\text{substance}}}{\rho_{\text{water}}}$$

Ratio of density of a substance to the density of water.

Variables & Units

$R.D.$

Relative Density

Unit: Dimensionless

Key Information

📐 Derived From

Comparative density definition.

💡 Example

R.D. of Gold is $19.3$.

🔧 Applications

Purity testing.

⚠️ Constraints

Standard temperature for water density.

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