Beating heart of mercury

Beating heart of mercury

The drop of mercury starts to move rhythmically due to the rhythmic changes in the surface charge density and surface tension.




heart of mercury, mercury, potassium dichromate, sulphuric acid, iron nail, iron, surface tension, surface charge density, redox reaction, oxidation, reduction, watch glass, beaker, experiment, inorganic, chemistry

On-screen labels

Hg, K2Cr2O7, dilute sulphuric acid solution, concentrated sulphuric acid, Fe, Fe-> Fe2+ + 2e-, e-, Cr2O2-7 + 14H+ -> 36e- -> 2Cr 3+ + 7H2O
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