Question

11.
Explain the reason for the following statement,
“When heat is applied at the bottom of the vessel, then it gets heated more quickly than
when it is heated at the top." convection​

Answer 1

The particles of water become more lighter and rise up in the middle. Due to this, the cold particles of water which are heavier come down along the sides of the vessel. So, the convection currents of heat are setup and water becomes hot. The moment, when the heat is applied at the top, then the water present in the upper portion becomes hot and these hot water molecules get fixed over the surface. Since, water is a bad conductor of heat, due to which water present at the lower end (or bottom) of the vessel remains.

Answer 2

Answer:

Conduction

Explanation:

conduction is faster than convection and tsfiation . Heat is directly applied to the bottom by flames touching the contsiner