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Water is being boiled in a flat bottomed...

Water is being boiled in a flat bottomed kettle placed on a stove . The area of the bottom is `300 cm^(2)` and the thickness is 2 mm. If the amount of steam produced is 1 g `min^(-1)`, then the difference of the temperature between the inner and outer surfaces of the bottom is (thermal conductivity of the material of the lettle =`0.5 cal cm^(-1)^(@)C s^(-1)` and latent heat of the steam is equal to to `540 cal g^(-1)`)

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`0.012^(@)C`
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