Question

Convection ovens are ovens that are advertised to cook food more evenly than a standard thermal oven. Which statement best explains how a convection oven works?



a
Hot air is transferred through molecule to molecule contact.
b
Hot air is transferred through density differences with hot air rising and cool air sinking.
c
Hot air is transferred through density differences with cool air rising and hot air sinking.
d
Hot air is transferred through heat being radiated from a thermal burner.

Answer 1

b

Convection ovens use convection — the bulk movement of air (warm air rises, cool air sinks) to transfer heat. Most convection ovens also use a fan to force that circulation, improving heat transfer and evenness.