Properties Of Water

Question 1

What are the Benefits of water being a good solvent?

Answer 1

Good for transporting molecules and ions in organisms

Most chemical reactions occur in a solution

Ions can dissolve in water in the blood

Question 2

Define cohesive

Answer 2

Attraction between (water) molecules

Question 3

Why is it good that water has a lower density when solid?

Answer 3

Ice forms a protective layer which reduces the rate of heat loss. Stabilising the environment

Question 4

Why does water have a high specific heat capacity

Answer 4

A relatively large amount of energy is required to increase the temp of water due to its hydrogen bonds being able to absorb lots of energy

Question 5

Benefits of waters high latent heat of vaporisation

Answer 5

Water is an excellent coolant. Mammals sweat, when the sweat evaporates it carries heat away from the mammal, cooling it down

Question 6

Define adhesion

Answer 6

Adhesion is the attraction that water has to other polar substances