A ice box of styrofoam (thermal conductivity = `0.01` J `ms^(-1)K^(-1)`) is used to keep liquid cool. It has a total wall area, including lid, of `10.8 m^(2)` and wall thickness of `2.0` cm. A bottle of water is placed in the box and filled with ice. If the outside temperature is `30^(@)C`, the rate of flow of heat into the box is (in `J//s)`

An ice box made of styrofoam (thermal conductivity =0.01" Jm"^(-1)s^(-1)K^(-1) ) is used to keep liquids cool. It has a total wall area including lid of 0.8" m"^(2) and wall thickness of 2.0 cm. A bottle of water is placed in the box and filled with ice. If the outside temperature is 30^(0)C the rate of flow of heat into the box is : (in J-s^(-1) )

An ice box made of Styrofoam (Thermal conductivity = 0.01 J m ^(-1) s ^(-1) K ^(-1)) is used to keep liquids cool. It has a total wall area including lid of 0.8 m^(2) and wall thickness of 2.0 cm. A bottle of water is placed in the box and filled with ice. If the outside temperature is 30°C the rate of flow of heat into the box is : (in J-s ^(-1) ):

A liquid-nitrogen container is made of a 1-cm thick styrofoam sheet having thermal conductivity 0.025Js^(-1)m^(-1) ^(@)C^(1) . Liquid nitrogen at 80K is kept in it. A total area of 0.80m^(-2) is in contcet with the liquid nitrogen. The atmospheric temperature is 300K . Calculate the rate of heat flow from the atmosphere to the liquid nitrogen.

A liquid-nitrogen container is made of a 1-cm thick styrofoam sheet having thermal conductivity 0.025Js^(-1)m^(-1)C^(-1) . Liquid nitrogen at 80K is kept in it. A total area of 0.80m^(2) is in contact with the liquid nitrogen. The atmospheric temperature is 300K . Calculate the rate of heat flow from the atmosphere to the liquid nitrogen.

An ice box used for keeping cold eatables has a total wall area of 1 metre^2 and a wall thickness of 5.0 cm. The thermal conductivity of the ice box is K=0.01 (jou l e)/(metre)^@C . It is filled with ice at 0^@C along with eatables on a day when the temperature is 30^@C . The latent heat of fusion of ice is 334 x 10^3 joules/kg. The amount of ice melted in one day is (1 day = 86,400 seconds)

A thermocole cubical icebox of side 30 cm has a thickness of 5.0 cm if 4.0 kg of ice are put ini the box, estimate the amount of ice remaining after 6 h. The outside temperature is 45^@C and coefficient of thermal conductivity of thermocole =0.01 J//kg .

A thermocole cubical icebox of side 30 cm has a thickness of 5.0 cm if 4.0 kg of ice are put ini the box, estimate the amount of ice remaining after 6 h. The outside temperature is 45^@C and coefficient of thermal conductivity of thermocole =0.01 J//kg .