1. A physical constant that relates the surface tension of a liquid to its density and molar mass, used in chemistry to predict molecular structure and properties.
Usage: technical; chemistry

Examples

• The parachor value helps chemists estimate the surface tension of organic compounds.
• Researchers use parachor calculations to understand intermolecular forces in liquids.
• The parachor is particularly useful in predicting the behavior of surfactants.
• By measuring the parachor, scientists can infer information about molecular structure without direct observation.