APPLICATION: SURFACE TENSION

Quantitate force exerted on surface interfaces

A DuNouy ring is slowly raised through the sample to quantify the liquid-liquid or liquid-air interface tension due to the attraction force (Newtons) exerted from asymmetric intermolecular interactions that can appreciably differ from the more balanced interactions within the sample.

Water walker insects are among many that use surface tension to be supported by water.

More information can be found in the references listed in Helpful Links page.

 

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Measuring surface tension of wine with a Du Nouy ring.