Differentiate between convection and conduction? How is food cooked? [3 MARKS]
Differentiate between convection and conduction? How is food cooked? [3 MARKS]
Difference : 2 Marks
Cooking : 1 Mark
Conduction: Conduction is the process of transfer of heat from the hotter part to the colder part of an object without the movement of the particles. Also, in conduction, heat gets transferred between substances that are in direct contact with each other.
Convection: It is the process of transfer of heat by the movement of particles of a medium from one place to another. It takes place in liquid and gases.
The pan or cooker that is used gets heated by radiation. The outer surface which gets heated now conducts this heat to the inner surface and to the items that are in touch. If a liquid is also used, the liquid distributes this heat to all the items by convection.
Difference : 2 Marks
Cooking : 1 Mark
Conduction: Conduction is the process of transfer of heat from the hotter part to the colder part of an object without the movement of the particles. Also, in conduction, heat gets transferred between substances that are in direct contact with each other.
Convection: It is the process of transfer of heat by the movement of particles of a medium from one place to another. It takes place in liquid and gases.
The pan or cooker that is used gets heated by radiation. The outer surface which gets heated now conducts this heat to the inner surface and to the items that are in touch. If a liquid is also used, the liquid distributes this heat to all the items by convection.
