• Question: How far does water purity affect surface tension

    Asked by anon-208899 to Tori, Titus, Stuart, Hannah, Gill, Alessandro on 8 Mar 2019.
    • Photo: Stuart Higgins

      Stuart Higgins answered on 8 Mar 2019:

      A lot. Surface tension is caused by the water molecules being attracted to each other. Other chemicals or particles in the water can disrupt (or enhance) those forces, changing the surface tension. In our lab we often add surfactants (which are the kinds of chemicals found in washing up liquid) to water to change the surface tension and other properties of water.

    • Photo: Hannah Dalgleish

      Hannah Dalgleish answered on 11 Mar 2019:

      What Stuart said. 😉

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