‘cold box’ in the shape of a cube of edge 50 cm is made of ‘thermocol’ material 4.0 cm thick. If the outside temperature is `30^(@)C` the quantity of ice that will melt each hour inside the ‘cold box’ is : (the thermal conductivity of the thermocol material is 0.050 `W//mK)`

A 100 W heater is placed in a cubical container of edge length 6xx10^(-2)m. The wall thick ness of the container is 1 mm. If inside and outside temperature in steady state are 30^(@)C. and 25^(@)C, find the thermal conductivity of the material of the box.

5cm thick walls of a box like cooler is made of plastic toam. Its total surface area is 1.5m^(2) . If outside temperature is 30^(@)C , then how much ice melts each hour inside the cooler to old its temperature at 0^(@)C . (Given K for plastic =0.04W//mK, L_(0)=80cal//g and 1kcal=4.184kJ//kcal )

A cubical thermocol ice box of side length 30cm has thichess of 5.0cm If 4.0kg of ice is put in the box estimate the amount of ice remaining after 6hr The utside temperature is 45^(@)C and co-efficinet of the thermal conductivity of the thermocol is 0.01 J s^(-1) m^(-1) K^(1) (Latent Heat of fusion of water =335 xx 10^(3) Jkg^(-1)) .

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 .

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 cubical ice box of side 50 cm has a thickness of 5.0 cm. if 5 kg of ice is put in the box, estimate the amount of ice remaining after 4 hours. The outside temperature is 40^(@)C and coefficient of thermal conductivity of the material of the box = 0.01 Js^(-1) m^(-1) .^(@)C^(-1) . Heat of fusion of ice = 335 Jg^(-1) .

A cubical ice box of side 50 cm has a thickness of 5.0 cm. if 5 kg of ice is put in the box, estimate the amount of ice remaining after 4 hours. The outside temperature is 40^(@)C and coefficient of thermal conductivity of the material of the box = 0.01 Js^(-1) m^(-1) .^(@)C^(-1) . Heat of fusion of ice = 335 Jg^(-1) .