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A brass boiler has a base area of 0.15 m...

A brass boiler has a base area of `0.15 m^(2)` and thickness `1.0` cm. It boils water at the rate of `6.0` kg/min when placed on a gas stove. Estimate the temperature of the part of the flame in contact with the boller. Thermal conductivity of brass ` = 109 J s^(-1) m^(-1) K^(-1)`, Heat of vaporisation of water `= 2256 xx 10^(3) J kg^(-1)`.

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`238 ^(@) C`
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A brass boiler has a base of 0.15m^(2) and thickness 1.0 cm. It boils water at the rate of 6.0 kg/min when placed on a gas stove. Estimate the temperature of the part of the flame in contact with the boiler. Thermal conductivity of brass =109" Js"^(-1)m^(-1)K^(-1), Heat of vaporization of water =2256xx10^(3)" Jkg"^(-1) .

A' thermacole' icebox is a cheap and an efficient method for storing small quantities of cooked food in summer in particular. A cubical icebox of side 30 cm has a thickness of 5.0 cm. "if "4.0 kg of ice is put in the box, estimate the amount of Ice remaining after 6 h. The outside temperature is 45^(@) C and co-efficient of thermal conductivity of thermacole is 0.01 J s^(-1) m^(-1) K^(-1) . [Heat of fusion of water = 335 xx 10^(3) J kg^(-1) ]

A 'thermacole' icebox is cheap and efficient method for storing small quantities of cooked food in summer in particular. A cubical icebox of side 30 cm has a thickness of 5.0 cam if 4.0 kg of ice is put in the box, estimate the amount of ice remaining after 6 h. The outside temperature is 45^(@)C , and coefficient of thermal conductivity of thermacole is 0.01" Js"^(-1)m^(-1)K^(-1) . [Heat of fusion of water =335xx10^(3)" Jkg"^(-1) ]

A copper block of mass 2.5 kg ts heated in a furnace to a temperature of 500 ^(@) C and then placed on a large ice block. What is the maximum amount of ice that can melt? (Specific heat of copper = 0.39 J g^(-1) K^(-1), " heat of fusion of water " = 335 J g^(-1)) .

A copper block of mass 2.5 kg is heated in a furnace to a temperature of 500^(@)C and then placed on a large ice block. What is the maximum amount of ice that can melt ? (Specific heat of copper =0.39" Jg"^(-1)K"^(-1), heat of fusion of water =335" Jg"^(-1) ).

1kg ice at 0^(@)C is mixed with 1kg of steam at 100^(@)C . What will be the composition of the system when thermal equilibrium is reached ? Latent heat of fusion of ice = 3.36xx 10^(6)J kg^(-1) and latent heat of vaporization of water = 2.26 xx 10^(6)J kg^(-1)

What is the temperature of the steel - copper junction in the steady state of the system shown in Fig. Length of the steel rod = 15.0 cm, length of the copper rod = 10.0 cm, temperature of the furnace =400" "^(@)C , temperature of the other end =0" "^(@)C . The area of cross section of the steel rod is twice that of the copper rod. (Thermal conductivity of steel =50.2" J s"^(-1)m^(-1)K^(-1), and of copper =385" J s"^(-1)m-1" "K^(-1) ).

What is the temperature of the aluminium junction in the steady state of the system shown in Fig. Length of the load =15.0 cm, length of the aluminium rod =10.0 cm temperature of the furnace = 400" "^(@)C , temperature of the other end =0" "^(@)C . The area of cross section of the lead rod is twice that of the aluminium rod. (Thermal conductivity of steel =34.9" J s"^(-1)m^(-1)K^(-1), and copper =205" J s"^(-1)m-1" "K^(-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 .

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