Question

determine whether each statement is true or false.
a saucy-shaped concave meniscus forms when adhesive forces between a liquid and its container are stronger than cohesive forces between the liquid molecules.
capillary action is only observed in plants.
both adhesive and cohesive forces help move water from the roots of a plant to its leaves.
adhesive forces hold water molecules together as water rises in a tube.
adhesion is an attractive force between different types of molecules.
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chemistry of water (00)

Explanation:

• Statement 1: When adhesive forces (liquid - container) > cohesive forces (liquid - liquid), a concave meniscus forms. For example, water in a glass tube. So this statement is true.
• Statement 2: Capillary action is observed in many places like paper towels absorbing water, not just in plants. So this statement is false.
• Statement 3: Adhesive forces (water - plant cell walls) and cohesive forces (water - water) work together in transpiration - pull (movement of water from roots to leaves). So this statement is true.
• Statement 4: Cohesive forces hold water molecules together as water climbs in a tube. Adhesive forces are between water and the tube. So this statement is false.
• Statement 5: By definition, adhesion is an attractive force between different types of molecules. So this statement is true.

Answer:

1. True
2. False
3. True
4. False
5. True