Question

24) Which kind of heat transmission takes
places by up-ward flow?
​

Answer 1

Answer:convection

Explanation:heat is transferred in convection due to density difference between the molecules. Most of the heat transfer takes place due to the convection.

Answer 2

Answer:

Heat is a form of energy. It derives its origins at the molecular scale. Molecules of a substance vibrate at their positions either fixed or not when energy is supplied to them. As they vibrate they transfer their energy to the surrounding molecules causing them to vibrate as well.

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