Molecular Vibration

Conduction is the transfer thermal energy without any flow of the material medium. Conduction of heat through solid and liquid are molecular vibration and free electron diffusion. Conduction occurs in all solid, liquid and gas. However, as compared to solid, liquid and gas are poor conductor of heat. Lets find out more about molecular vibration in solid during heating... ... 

Molecular Vibration during Heating

When a solid is heated at one end, the molecules at the the hot end vibrate vigorously and vibrate their neighbouring molecules as well. This create some kind of kinetic energy of the vibrating molecules and transfer to their neighbours. This process goes on and on to the cold end of the solid.

The process will only stop when the temperature of the solid becomes uniform and constant. 

 

The heat transfer by molecule vibration occurs for both metals and non-metals although metal tenses to heat up faster than non-metals. This is due to conduction by free electron diffusion.

Find out more about why metal heat up faster than non-metals.

 

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