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How do convection ovens move hot gas molecules around the oven?
Wiki User
∙ 12y ago
The circular movement of the heated air molecules thoroughly reaches all areas of food and helps reduce the energy needed for cooking.
Wiki User
∙ 12y ago
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Why convection occurs only the liquid s and gases only but not in solids?
The molecules in solids are not free to move around as they are in liquids and gasses. It's the movement of the molecules that creates the convection currents.
What is convection heating from a campfire?
The simplest answer is: the fire adds heat energy to the air molecules near it. The higher energy molecules start bouncing around faster. When these molecules move away from the fire, they carry the energy (heat) with them.
Do the water molecules move by convection or conduction?
convection above zero, somebody said they are conductive below zero, like glass that melts.
Why can't heat be transferred by convection in solids?
Because the molecules of a solid do not move [much] from their location.
Why convection cannot take place in solids?
because the process requires the formation of currents which is only possible in fluids (i.e solids and liquids). It is not possible for currents to develop in solids for the simple reason that the molecules in a solid are not free to move around and they are contained in their fixed positions.
Why convection occurs only the liquid s and gases only but not in solids?
The molecules in solids are not free to move around as they are in liquids and gasses. It's the movement of the molecules that creates the convection currents.
What is the difference between the convection oven and the regular oven?
Convection ovens have a fan in order to move the heat inside providing faster and more even cooking.
What is convection heating from a campfire?
The simplest answer is: the fire adds heat energy to the air molecules near it. The higher energy molecules start bouncing around faster. When these molecules move away from the fire, they carry the energy (heat) with them.
Is it true that the flow that transfers heat within a fluid is called a convection current?
In a convection current, heat flows with the heated molecules as they move around in the liquid or gas. In a solid, the heat transfers via condition
Do the water molecules move by convection or conduction?
convection above zero, somebody said they are conductive below zero, like glass that melts.
Why can't heat be transferred by convection in solids?
Because the molecules of a solid do not move [much] from their location.
What is the difference between convention cooking and convection cooking?
A convection oven uses heat, like a regular oven, but sets up a convection current to move heat into the food faster. Microwave ovens use microwave radiation that causes polar molecules inside the food to move. Water being the most common highly polarized molecule in food, microwaves essentially steam food from the inside out.
What happens as the molecules in a liquid move around?
the molecules will go slowly around in the glass
Heat convection does not occur in solids because?
Because the atoms do not move around. The whole idea of convection is that 'groups' of things move about. In the case of heat convection these moving groups take or bring their heat with them.
Why do molecules move when heated?
So when molecules are heated, the heat is so intense that they have to move around for them to cool down.
Why convection cannot take place in solids?
because the process requires the formation of currents which is only possible in fluids (i.e solids and liquids). It is not possible for currents to develop in solids for the simple reason that the molecules in a solid are not free to move around and they are contained in their fixed positions.
How does conduction differ convection?
Conduction warms the atmosphere as fast-moving molecules come into contact with lower-energy molecules until all molecules are moving at about the same rate. As the atmosphere warms, molecules move apart. As the heated air flows, heat is transferred by convection from warm, low-pressure air to cooler, high-pressure air.
