Question

When a liquid in a beaker is heated on a gas burner A) Heated molecules become less dense and rise B) Colder molecules from above move down and get heated C) The heat is transferred by convection D) All of these are correct

Answer 1

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Answer 2

Hèy Fríéñd..

When a liquid in a beaker is heated on a gas burner, then slowly whole liquid becomes hot. This is due to the molecules at bottom absorb heat and becomes less dense and rise towards the surface. The more dense molecules come down and similarly it absorbs heat and rise. Thus the whole liquid heat up by this process called CONVECTION.

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So

-----All Options Are Correct-----

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