Water has unique physical properties. It is transparent, colorless, odorless and tasteless in its pure form. At normal atmospheric pressure, water boils at 100°C. When water freezes at 0°C, it expands and forms hexagonal structures as ice, allowing ice to float on liquid water. Pure water is not a good conductor of electricity, but conductivity increases as the concentration of dissolved ions increases. Water is also a remarkable solvent that can dissolve many substances to form aqueous solutions because of its high dielectric constant.

1. By
Deepak Chakravarthy

2. Physical Properties Of Water
Pure Water Is Transparent, colourless,
odourless and Tasteless

3. Physical Properties of Water
At Normal Atmospheric Pressure (i.e., 760 mm
Hg) Water boils at 100°c

4. Freezing
• Density of ice (at 0°C) is 0.917 g/mL, so ice
floats in water.
 Most liquids become
more dense as you cool
them.
 However, when water
freezes, a large expansion
occurs.
Water “organizing” with H
bonds as it freezes.
Forms hexagon shapes.
* Where have you see H2O
in repeating hexagonal
patterns before?

5. So ice is able to float (just
barely)

6. Conductivity
• Pure water is not a good conductor of electricity. Ordinary
distilled water in
equilibrium with carbon dioxide of the air has a
conductivity of about 10 x 10-6 W-1*m-1 (20 dS/m).
Because the electrical current is transported by
the ions in solution, the conductivity increases as the
concentration of ions increases.
Thus conductivity increases as water dissolved ionic species.

7. Solvent Properties
Water is a Remarkable Solvent and dissolves
many Substance forming aqueous Solution
Because of high Dielectric Constant

8. Thank You