Which term describes the attractive force between molecules of different substances?

Which term describes the attractive force between molecules of different substances?

• A. Adhesion
• B. Transpiration
• C. Doldrums
• D. Solar wind

Answer: (A)

The concept being tested is how substances attract each other across different materials. This type of attraction is called adhesion. It explains why water can stick to and climb along a glass surface or plant tissues, as the water molecules are drawn to the molecules of the other material. Adhesion contrasts with cohesion, which is the attraction between like molecules, pulling similar molecules together. The other terms refer to unrelated ideas: transpiration is water loss from plants, doldrums are calm wind zones near the equator, and solar wind is a stream of charged particles emitted by the Sun. Adhesion best fits the description of the attractive force between molecules of different substances.

The concept being tested is how substances attract each other across different materials. This type of attraction is called adhesion. It explains why water can stick to and climb along a glass surface or plant tissues, as the water molecules are drawn to the molecules of the other material.

Adhesion contrasts with cohesion, which is the attraction between like molecules, pulling similar molecules together. The other terms refer to unrelated ideas: transpiration is water loss from plants, doldrums are calm wind zones near the equator, and solar wind is a stream of charged particles emitted by the Sun. Adhesion best fits the description of the attractive force between molecules of different substances.