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The thermal conductivity of a nonwoven fabric is given by λ = 0.03 + 0.00005ρ + 0.15/ρ where λ is the thermal conductivity of the fabric in W/(m⋅K), ρ is the bulk density of the fabric in kg/

The thermal conductivity of a nonwoven fabric is given by λ = 0.03 + 0.00005ρ + 0.15/ρ where λ is the thermal conductivity of the fabric in W/(m⋅K), ρ is the bulk density of the fabric in kg/

Heat is generated at a steady rate of 100 W due to resistance heating in a long wire (length = 5 m, diameter = 2 mm). This wire is wrapped with an insulation of thickness 1 mm that has a thermal condu

A steel ball of diameter 60 mm is initially in thermal equilibrium at 1030°C in a furnace. It is suddenly removed from the furnace and cooled in ambient air at 30°C, with convective heat transfer co

If l is the length, A is the area of cross-section and K the thermal conductivity, then the thermal resistance of the block is given by

Thermal conductivity of air is

The thermal conductivity of hydrogen is ______ times that of air