Difficulty: Easy

Average Score: 85%

Which of the following is a benefit of the intermolecular hydrogen bonding of water? (Select one that doesn't apply.)

Rationale

Water moves from higher to lower concentrations.

This statement describes the natural process of diffusion and is not a direct benefit of intermolecular hydrogen bonding in water. While hydrogen bonding contributes to many of water's unique properties, the movement from higher to lower concentrations is a general characteristic of solute transport and does not specifically arise from hydrogen bonding interactions.

A (Water has a relatively high specific heat capacity.) YOUR ANSWER

Water's high specific heat capacity is a direct result of hydrogen bonding. The energy required to break these bonds allows water to absorb a significant amount of heat without a large change in temperature, making it an effective temperature regulator in environments.

B (Water has strong cohesive and adhesive properties.) YOUR ANSWER

Hydrogen bonding is responsible for water's strong cohesive properties, which allow water molecules to stick to each other, and its adhesive properties, which enable it to adhere to other substances. These properties are critical for phenomena such as surface tension and capillary action.

C (Polarity of water allows it to act as a versatile solvent.) YOUR ANSWER

The polarity of water molecules, enhanced by hydrogen bonding, makes water an excellent solvent for many ionic and polar substances. This versatility is crucial in biological and chemical processes where water acts as a medium for solvation and transport of various compounds.

D (Water moves from higher to lower concentrations.) CORRECT

This statement refers to diffusion, a process influenced by concentration gradients. While it is true that water will move from areas of higher concentration to lower concentration, this behavior is a general property of diffusion and not a benefit that arises specifically from hydrogen bonding.

Conclusion

Intermolecular hydrogen bonding in water contributes significantly to its unique physical properties, such as high specific heat capacity, strong cohesive and adhesive characteristics, and its effectiveness as a solvent. However, the movement of water from higher to lower concentrations is a general property of diffusion that does not specifically relate to the advantages provided by hydrogen bonding. Understanding these distinctions is crucial in appreciating the complex role water plays in biological and chemical systems.

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