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# Physical Properties of Water The document appears to be handwritten notes about the physical properties of water, specifically focusing on density and relative density. **Key Points:** * **Density:** Water has its highest density at 4°C. * **Relative Density (Specific Gravity):** The ratio of...

# Physical Properties of Water The document appears to be handwritten notes about the physical properties of water, specifically focusing on density and relative density. **Key Points:** * **Density:** Water has its highest density at 4°C. * **Relative Density (Specific Gravity):** The ratio of the density of a substance to the density of a reference substance (often water). * **Unit-less:** Relative density is a unit-less quantity. * **Water Density at 4°C:** 1000 kg/m³ * **Example of Relative Density:** Lead (Pb) has a relative density of 13.6. **Additional Notes:** The notes also mention that relative density is the ratio of the density of the substance to the density of water. The handwritten notes contain some calculations, equations or formulas. A table summarizing some of the information could be presented as follows: | Property | Value/Description | |---|---| | Density of Water at 4°C| 1000 kg/m³ | | Relative Density/Specific Gravity (definition)| Ratio of substance density to water density | | Relative Density of water at 25°C | 2025| | Relative Density of Lead(Pb) | 13.6 | Note, it is not explicitly mentioned in the document but likely the temperature of 4 degrees c is needed. There may be additional, more detailed calculations and explanations within the handwritten notes that cannot be determined from the OCR. The text also seems to contain some foreign characters or text in another language, likely Hindi or another Indic script.