Van Der Waals - English Definition & Meaning

Definition

Van der Waals forces are weak, short-range intermolecular forces between atoms or molecules. They explain why nonpolar substances can condense into liquids or solids. Think of it like the attraction between two LEGO bricks that aren't perfectly connected but still stick together a bit. Without them, many biological processes wouldn't be possible. They are weaker than covalent or ionic bonds. These forces are essential in determining the physical properties of many materials. These forces are additive, so the bigger the molecule, the stronger the force.

Etymology

The term 'van der Waals' is named after Dutch physicist Johannes Diderik van der Waals. He received the Nobel Prize in Physics in 1910 for his work on the equation of state for gases and liquids. His work focused on understanding the behavior of real gases, which deviate from ideal gas laws. He recognized the importance of intermolecular forces in explaining these deviations. Van der Waals' contributions revolutionized the field of thermodynamics and molecular physics. His name is now synonymous with these ubiquitous forces.

Related Words

Examples

• "Van der Waals forces are responsible for the gecko's ability to climb smooth surfaces."
• "The boiling point of a substance is influenced by the strength of its van der Waals forces."
• "These forces play a crucial role in protein folding and DNA structure."
• "The van der Waals equation accounts for the non-ideal behavior of real gases."

Encouragement

Van der Waals forces might seem complex, but they're fundamental to understanding the world around us. Use this term when discussing science, chemistry, or physics. You'll impress your teachers and peers! 🔬

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