Water is boiled in a rectangular steel tank of thickness 2 cm by a constant temperature furnace. Due to vaporisation, water level falls at a steady rate of 1 cm in 9 minutes. Calculate the temperature of the furnace. Given K for steel `0.2 cal s^(-1) m^(-1) .^(@)C^(-1)`

A rectangular steel tank of thickness 3 cm contains water. The water in the tank is boiled by a furnace. The level of water falls at a constant rate of 1.5 cm in 15 minutes. What will be the temperature of furnace if K for steel is 0.2 cal s^(-1) m^(-1) ""^@C^(-1) ?

A rectangular steel tank of thickness 2.5 cm is used to boil water by a constant temperature furnace. If the level of water inside the tank falls at a steady rate of 0.25 cm in 2 minutes due to vaporisation, find the temperature of the furnace. Take, conductivity of steel = 0.2 cal s^(-1) m^(-1) ""^@C^(-1) Latent heat of steam = 540 cal/g

Calculate the difference in temperature between two sides of an iron plate 20 m m thick, when heat is conducted at the rate of 6xx10^(5) cal/min/ m^(2) . K for metal is 0.2 cal s^(-1)cm^(-1).^(@)C^(-1)

Calculate the difference in temperature between two sides of an iron plate 20 m m thick, when heat is conducted at the rate of 6xx10^(5) cal/min/ m^(2) . K for metal is 0.2 cal s^(-1)cm^(-1).^(@)C^(-1)

A uniform steel rod of length 50 cm is insulated on its sides. There is a layer of water of thick ness 0.2 mm at each end of the rod. If the ends of the rod are exposed to ice at 0^(@)C , and steam at 100^(@)C, calculate the temperature gradient in the rod. Thermal conductivities of steel and water are 0.11calcm^(-1)s^(-1) ""^(@)C^(-1) and 1.5xx10^(-3)calcm^(-1)s^(-1) ""^(@)C^(-1)

A platinum balls of mas 100g is remoived from a furnace and immersed in a copper vessel of mass 100g containing water of mass 390g at 30^(@)C . The temperature of water rises to 40^(@)C . Caltulate the temperature of the furnace. (Given that the specific heat of platinum =168kg^(-1)K^(-1) , specific heat capacity of copper =420Jkg^(-1)K^(-1) and specific heat capacity of water =4200Jkg^(-1)K^(-1))

A rectangular tank is 25m long and 9.5m deep. If 600 cubic metres of water be drawn off the tank, the level of water in the tank goes down by 1.5m. Calculate : the width of the tank

The height of Niagra falls is 50 m. Calculate the difference in temperature of water at the top and at the bottom of fall, if J = 4.2 J cal^(-1) .