6. Distinguish between the following.
b) Convection and Conduction
Answers
Explanation:
Convection
It is the transfer of heat by the movement of a fluid (liquid or gas) between areas of different temperature.
Occurs in Solids
It rises from molecule at free or rest of electrons
Direct Contact
It takes place Due to molecular collision.
Example
Heating of a metallic rod when placed in high heat.
Conduction
It is the transfer of thermal energy through direct contact.
Occurs in liquids and gases.
It rises from molecule moving of electrons
Indirect contact.
It takes place Due to diffusion of heated particles
Example
Heating of liquid within a vessel which is placed at high flame.