IYPT 2001, Задачи на турнира — Задача 12. Reaction

14th IYPT (2001)

Заглавие в източника

Source: tapiolanlukio.fi Nov. 12 2000, iypt.org ca. Apr. 17, 2001
Selected at the Preparatory Seminar in Finland on Oct. 13—15, 2000
Exemplary solutions for 2001 →

Условие

Make an aqueous solution of gelatine (10g gelatine in 90ml of water), heat it to 80 degrees C in a water bath and mix it with a solution of potassium iodide. Pour the solution in a test tube and cool it. Pour a solution of copper sulphate on the surface of the gel. Find a physical explanation to the observed phenomena.

Решение

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Оригинал в Архива: 2001.txt · допълнителни данни: 2001-3.gif