Which one of the following forms of water have the highest value of thermal conductivity?

Related MCQs

• Which of the following is the correct relationship between thermal resistance and thermal conductivity?
• Presence of moisture in the thermal insulating material increases thermal insulation while the presence of air spaces decreases thermal insulation.
• Mark the matter with least value of thermal conductivity
• Thermal conductivity is defined as the heat flow per unit time
• The reciprocal of thermal conductivity is known as                      
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• A water-heater is covered with insulation boards over a total surface area of 3 m2. The inside board surface is at 75°C and the outside being at 20°C and the conductivity of material being 0.08 W/m K. Find the thickness of board to limit the heat transfer loss to 200 W ?
• A water-heater is covered up with insulation boards over a total surface area of 3 m2. The inside board surface is at 75°C and the outside surface is at 20°C and the board material has a conductivity of 0.08 W/m K. How thick a board should it be to limit the heat transfer loss to 200 W ?
• The average thermal conductivities of water and air conform to the ratio
• Three metal walls of the same thickness and cross sectional area have thermal conductivities k, 2k and 3k respectively. The temperature drop across the walls (for same heat transfer) will be in the ratio