Question

a stovetop burner on medium reaches 95°c. which will also receive a flow of heat directly from the burner?
the surrounding air
a burner at the same temperature
a pan heated to 100°c
hotter water inside a pan

Explanation:

Heat transfer occurs from a region of higher temperature to a region of lower temperature. The stovetop burner is at \(95^{\circ}C\).

• The surrounding air is at a lower temperature (room - temperature, typically much less than \(95^{\circ}C\)), so heat will flow from the burner to the surrounding air.
• For a burner at the same temperature (\(95^{\circ}C\)), there is no temperature difference, so no net heat transfer.
• A pan heated to \(100^{\circ}C\) is at a higher temperature than the burner (\(95^{\circ}C\)), so heat will flow from the pan to the burner (not the other way around).
• Hotter water inside a pan (assuming its temperature is higher than \(95^{\circ}C\)) will have heat flow from the water to the burner (not from the burner to the water).

Answer:

the surrounding air