## Identify which property of water cohesion, adhesion, or heat capacity applies to each observation below. 4. Large, circular lily

Question

Identify which property of water cohesion, adhesion, or heat capacity applies to each observation below.

4. Large, circular lily pads are able to float on the water’s surface.

5. The temperature of the water is about 5°C, while the temperature of the air is about 21°C.

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3 months 2022-03-03T20:36:16+00:00 2 Answers 0 views 0

For 5: The correct answer is heat capacity.

Explanation:

Adhesive forces are defined as the molecular forces which are present between different substances. For Example: When water is poured into glass, the molecular forces between the walls of container and water molecules.

Cohesive forces are defined as the molecular forces which are present between same substances.

Heat capacity is defined as the amount of heat energy that is required to raise temperature of a substance per unit of mass. It is a physical property.

• For 4:

The molecular forces between circular lily pads and water is strong. Thus, circular lily pads float on water’s surface.

• For 5:

In water, hydrogen bonding is present, which is strong. So, in order to overcome this bonding, we need to apply more heat. So, the amount of heat required is more to raise the temperature. Thus, it has high heat capacity.

This is the reason the temperature of water is about 5°C while the temperature of air is about 21°C.

Hence, the correct answer is heat capacity.

2. 4. Large, circular lily pads are able to float on the water’s surface.