1.1 Properties of Water

Front

What is the reason large bodies of water do not quickly fluctuate in temperature?

Back

Water has a high heat capacity.

Front

What are hydrophobic substances?

Back

Nonpolar substances that repel water molecules.

Front

What property of water allows sweat to lower body temperature?

Back

The absorption of heat by the breaking of hydrogen bonds.

Front

What causes water's high specific heat?

Back

Absorption and release of heat when hydrogen bonds break and form.

Front

Why does ice float in liquid water?

Back

Hydrogen bonds stabilize and keep the molecules of ice farther apart than the water molecules of liquid water.

Front

Define high heat capacity in the context of water.

Back

The ability of water to absorb and retain heat without significant temperature change.

Front

What is the significance of water being a versatile solvent?

Back

It can dissolve a wide range of substances, facilitating chemical reactions in biological systems.

Front

Explain the term 'hydrogen bonding' in water.

Back

A weak bond formed between the hydrogen atom of one water molecule and the oxygen atom of another.

Front

What is the effect of water's high surface tension?

Back

It allows small objects to float and insects to walk on its surface.

Front

How does water's density change when it freezes?

Back

Ice is less dense than liquid water due to the crystalline structure formed by hydrogen bonds.