When we touch a piece of metal and piece of wood placed in the same room, the piece of metal feels much colder than the piece of wood this happens because of difference in:
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Metal feels much colder than wood under room temperature due to their difference in thermal conductivity.
Thermal conductivity is a property of an object to conduct heat. The greater thermal conductivity of an object, the better it is in trasferring heat.
When you touch the metal, the heat from your hand is transferred away from you.
However, when you touch the wood, because of its low thermal conductivity, heat is transferred away from you slowly so you will feel that the wood is hotter than the metal or that the metal is colder than the wood.
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