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lys-0071 [83]
3 years ago
10

Why doesn’t a convection current form when a liquid is heated at the top?

Chemistry
1 answer:
DaniilM [7]3 years ago
5 0

If the heating is done on one small area on the top, there will be convection. If the heating is restricted to a small fraction of the heating area, then within that area the heating will go deeper than anywhere else on the surface. Then unheated area will have a shallower region of high temperature. Then some convection will occur in the deeper layers, causing some motion on top.

This happens quite a bit during welding. Convection is very significant in welding, even when the heating is from the top.

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Let's plug in the values in the equation:

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3 years ago
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garik1379 [7]

Answer:

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2 years ago
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