A beaker of water is placed on a Bunsen burner.As the lower layers of water are heated,they become less dense and rise.This permits cooler layers to move downward and be heated.Eventually,the water boils.Which method(s)of heat transfer is (are)primarily responsible for boiling the sample?
A)conduction
B)convection
C)radiation
D)both conduction and radiation
E)both conduction and convection

Question

Quizplus · Accepted Answer

The primary methods of heat transfer responsible for boiling the water are conduction and convection. Conduction occurs as heat is transferred from the Bunsen burner to the beaker and then to the water at the bottom. Convection currents are created as the heated water rises and cooler water moves down to be heated, circulating heat throughout the beaker.

A Beaker of Water Is Placed on a Bunsen Burner