heat conduction ex
DESCRIPTION
yoshiiTRANSCRIPT
INTRODUCTION:
In heat transfer, it can also be transferred by conduction. Have you ever
noticed that a simple bar heated by candle becomes warmer because the fire from
the candle is conducted along the simple bar?
Heat conduction is the flow of internal energy from a region of higher
temperature to one of lower temperature by the interaction of the adjacent particles
in the intervening space. Conduction is most effective in solids but it can happen in
fluids and gas. In solids, it is due to the combination of vibrations of the molecules in
a lattice and the energy transport by free electrons. The flow of heat by conduction
occurs via collisions between atoms and molecules in the substance and the
subsequent transfer of kinetic energy. It is the transfer of energy through matter
from particle to particle. It always takes place from a region of higher temperature to
a region of lower temperature. In gases and liquids, conduction is due to the
collisions and diffusion of the molecules during their random motion. For another
example the heat conduction is a spoon in a cup of hot soup becomes warmer
because the heat from the soup is conducted along the spoon.
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3.0 APPARATUS:
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Temperature and wattmeter Heat conduction apparatus
Temperature sensor Stopwatch
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