Q6 of 287 Page 366

Demonstrate the formation of convective currents.

Heat energy can be transferred by convection when there are temperature differences between two parts of a liquid.

The formation of convective currents can be demonstrated by following experiment-


Required- Beaker, water, Potassium permanganate VII, Bunsen burner


Potassium Permanganate VII is a colored compound that dissolved in water on heating.


Take water in a beaker and put potassium permanganate VII into it and put the contents of beaker to heat on a Bunsen burner. This chemical compound will dissolve slowly in water and the movement of this colored compound will be visible thus showing the formation of convective currents.



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