Heat and Mass Transfer
Heat conducted through per unit area and unit thick face per unit time when temperature difference between opposite faces is unity, is called

Thermal resistance
Thermal coefficient
Temperature gradient
Thermal conductivity

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Heat and Mass Transfer
Conduction is a process of heat transfer

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

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