19. Convection ovens cook food more evenly than a standard thermal oven. Which statement explains how a convection oven works?(1 point)
Responses
Hot air is transferred when heat radiates from a thermal burner.
Hot air is transferred when heat radiates from a thermal burner.
Hot air is transferred through density differences when cool air rises and hot air sinks.
Hot air is transferred through density differences when cool air rises and hot air sinks.
Hot air is transferred through direct molecule contact.
Hot air is transferred through direct molecule contact.
Hot air is transferred through density differences when hot air rises and cool air sinks.
Hot air is transferred through density differences when hot air rises and cool air sinks.
Hot air is transferred through density differences when cool air rises and hot air sinks.
The correct statement that explains how a convection oven works is:
Hot air is transferred through density differences when hot air rises and cool air sinks.
In a convection oven, there is a fan located in the back of the oven that circulates the hot air. As the hot air circulates, it creates convection currents. These currents are generated by the density differences between hot air and cool air.
When the oven is turned on, the heating element heats up the air inside the oven cavity. As the air near the heating element is heated, it becomes less dense and rises. As it rises, it creates an area of lower pressure, which causes cooler air to be drawn in from the outside.
This continuous movement of hot air rising and cool air sinking creates a convection current, which helps to distribute heat evenly throughout the oven. This even distribution of heat is what allows convection ovens to cook food more evenly compared to standard thermal ovens.