Heat and Mass Transfer
Thermal conductivity of solid metals with rise in temperature normally

May increase or decrease depending on temperature
Decreases
Increases
Remain constant

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Heat and Mass Transfer
Conduction is a process of heat transfer

From one particle of the body to another without the actual motion of the particles
From a hot body to a cold body, in a straight line, without affecting the intervening medium
None of these
From one particle of the body to another by the actual motion of the heated particles

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