Steam at `100^(@)C` is passed into a copper cylinder 10 mm thick and of `200 cm^(2)` area. Water at `100^(@)C` collects at the rate of `150 g min^(-1)`. Find the temperature of the outer surface, if the conductivity of copper is `0.8 cal s^(-1) cm^(-1) .^(@)C^(-1)` and the latent heat of steam is `540 cal g^(-1)`.

When steam at 100^@C is passed into a metal cylinder, water at 100 ^@C is collected at the rate of 200 g/min. If the area and thickness of cylinder are 300 cm^2 and 20 mm, respectively, determine the temperature of the outer surface. Take, thermal conductivity of metal = 0.424 cal s^(-1) cm. Latent heat of steam = 540 cal g^(-1)

Steam at 100^(@)C is passed into 20 g of water at 10^(@)C when water acquire a temperature of 80^(@)C , the mass of water present will be [Take specific heat of water = 1 cal g^(-1).^(@) C^(-1) and latent heat of steam = 540 cal g^(-1) ]

Stream at 100^(@)C is passed into 20 g of water at 10^(@)C . When water acquires a temperature of 80^(@)C , the mass of water present will be [Take specific heat of water =1 cal g^(-1) .^(@)C^(-1) and latent heat of steam =540 cal g^(-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

Estimate the rate at which ice would melt in a wooden box 20 mm thick and of inside measurement 200 cm x 100 cm x 100 cm assumming that external temperature is 27^(@)C and coefficient of thermal conductivity of wood is 0.0004 cal s^(-1) cm^(-1) .^(@)C^(-1) .

How much work in joule is done in producing heat necessary to convert 10g of ice at -5^(@)C into steam at 100^(@)C ? Given specificheat of ice =0.5 cal g^(-1).^(@)C^(-1) , latent heat of steam = 540 cal g^(-1) .