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BIO NMDCAT Biological Importance of Water
nmdcat.online June 27, 2026

The high dielectric constant of water is a measure of its ability to

A. Conduct electricity through a circuit
B. Resist changes in its own temperature
C. Reduce the force of attraction between oppositely charged particles
✓
D. Form a crystalline lattice upon freezing

📝 Explanation

The dielectric constant is a measure of a solvent's ability to insulate opposite charges from each other. Water's high value (~80) means it weakens the electrostatic attraction between dissolved ions, enabling their dissociation and hydration. This is central to its role as a solvent for salts.

📖 Additional Information

  • Conduct electricity through a circuit
  • Resist changes in its own temperature
  • Reduce the force of attraction between oppositely charged particles
  • Form a crystalline lattice upon freezing

The dielectric constant is a measure of a solvent's ability to insulate opposite charges from each other. Water's high value (~80) means it weakens the electrostatic attraction between dissolved ions, enabling their dissociation and hydration. This is central to its role as a solvent for salts.

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