Which Number on This Figure Indicates Transfer of Thermal Energy

question 52

Multiple Choice

Which number on this figure indicates transfer of thermal energy by a convection cell?

• A) 1, direct contact between the burner and the pan
• B) 2, heating by thermal radiation through the air
• C) 3, heated water expands and rises to the top of the pan and then cools and flows back down
• D) 4, moving a pan of water away from the stove