The average value of thermal conductivity for water at 20?C is about

Related MCQs

• The variation of thermal conductivity of a metal with temperature is often correlated using an expression of the form K = K0 + at, where, K is the thermal conductivity and T is the temperature (in °K). The units of 'a' in SI system will be
• For gases, the thermal conductivity increases with temperature rise. For liquids, with increase in concentration, its thermal conductivity generally
• If thermal conductivity of aluminium is say 100 units at 0?C, the thermal conductivity at 500?C will be closer to
• The average value of thermal conductivity for air at 20?C is about
• A wall has two layers A and B, each made of a different material. Both the layers have the same thickness. The thermal conductivity of material of A is twice that of B. Under the thermal equilibrium the temperature difference across the wall is 30?C. The temperature drops in layers A and B will be respectively
• Among liquids, water has a comparatively high value of thermal conductivity, due to its
• The value of thermal conductivity of water at room temperature is expected to be
• Thermal conductivity of water in general with rise in temperature
• Thermal conductivity of water at 20°C is of the order of
• Thermal conductivity of water at 20?C is nearly