Properties of water

2. Prepared by:
Jho A. Calizo

3. This lesson will teach you about the properties of water. As
a result, you are expected to:
1. explain water's properties using its molecular structure
2. explain water's properties in terms of intermolecular
forces; and
3. acknowledge the significance of water's properties.

4. Water is an
inorganic
compound

5. Water is an inorganic compound.
 It is a chemical compound that
lacks carbon - hydrogen bonds,
that is, a compound that is NOT
formed by a living organism.
 It is a chemical compound that
does not contain a carbon atom.

6. Water is colorless, odorless,
tasteless, but it is considered as
the most important compound
in the body.

7.  In fact, 50% of water or
more is in the normal
adult`s body.
 The capability of dissolving
more substances than any
other liquid made water as
“universal solvent”.

8. Water is the chemical substance with chemical formula H2O.
H2O

9. The molecules of water have extensive
hydrogen bonds resulting in unusual
properties in the condensed form. This also
leads to:
 high melting and boiling point
 high specific heat capacity
 high thermal conductivity
 high latent heat of vaporization
 high cohesion and adhesion
 strong surface tension
 highly
polar
 low
viscosity

10. Why water has high melting and boiling point?
Water has a high melting and boiling point compared to other
similar molecules because:
• It has strong intermolecular forces due to hydrogen bonding.
Hydrogen bonding occurs when the hydrogen atoms in water
are attracted to the oxygen atoms in other water molecules,
creating a polarized charge separation. This makes water
molecules more difficult to separate, and requires more
energy in the form of heat.
• The size of the water molecule also contributes to its high
melting and boiling point.

11. Why water has high specific heat capacity?
Specific heat is defined by the amount of heat needed to raise
the temperature of 1 gram of a substance 1 degree Celsius (°C).
Water has high specific heat capacity because of the strength of
the hydrogen bonds. It requires a significant of energy to
separate these bonds. In short, it takes more energy to increase
the temperature of water compared to other substances.

13. What cause water high thermal conductivity?
Water has high thermal conductivity due to the following factors:
• Hydrogen bonding: Water molecules have a unique ability to
form hydrogen bonds with each other.
• High specific heat capacity: Water has a high specific heat
capacity, which means it can absorb a significant amount of heat
energy without undergoing a large temperature change.
• Presence of impurities, dissolved substances, or the pH level of
the water can influence the thermal conductivity of water.
• It is directly related to rising temperatures because it increases
solubility and ionic mobility; ions move faster in warmer water.

14. Why water has high latent heat of vaporization?

15. Cohesion is responsible for water's continuous flow and surface tension.
Adhesion is responsible for water's ability to stick to many surfaces and
form capillary action.

16. The water is the least viscous
and flows the fastest
because its molecules are
the furthest apart which
means less internal friction.
In the syrup, the molecules are much
closer together which means there is
a lot more internal friction. That
means that its flow rate is lower and
that its more viscous.
The soap is the most viscous out of the
water and the syrup. The molecules are
very tighly packed together. Because
they are so closed together, there is a lot
of internal friction.