2.2 Water

Question 1

The specific heat capacity

Answer 1

the heat required to raise the temperature of the unit mass of a given substance by a given amount.

Question 2

Latent heat of vaporization

Answer 2

The amount of energy needed to turn liquid water into water vapour (gas).

Question 3

Latent heat of fusion

Answer 3

:The amount of heat energy that must be removed from water to turn it to ice is very great, then that needed to melt ice.

Question 4

Adhesion

Answer 4

:Adhesion is the tendency of dissimilar particles or surfaces to cling to one another.

Question 5

Cohesion

Answer 5

:Cohesion is the action or property of like molecules sticking together, being mutually attractive.

Question 6

Surface tension

Answer 6

: the attractive force exerted upon the surface molecules of

Question 7

What are polar compounds

Answer 7

Polar compounds are those with distinct regions of positive and negative charge.

Question 8

Viscosity

Answer 8

the state of being thick, sticky, and semifluid in consistency, due to internal friction

Question 9

hydrogen bond

Answer 9

a weak bond between two molecules resulting from an electrostatic attraction between a proton in one molecule and an electronegative atom in the other

Oxygen atom = slightly negative charge

Hydrogen atoms = slightly positive charge

Question 10

Learning Outcomes

Answer 10

Identify the structure of water(Grade C)
Describe the properties(Grade B)
Explain the importance of each property to living organism.(Grad A/A)

Question 11

Properties of water

Answer 11

Metabolic importance
High heat capacity
Heat of vaporization 
Cohesive properties
Useful as  a solvent