Steam at 100°C is passed into one end of a 10 mm thick and 200 cm2 ext{cm}^2 area copper cylinder. Water at 100°C is collected at the rate of 150 g min−1 ext{g min}^{-1} at the other end of the cylinder. Find the temperature of the outer surface if the conductivity of copper is 0.8 cal s−1cm−1°C ext{cal s}^{-1} ext{cm}^{-1} ext{°C} and the latent heat of steam is 540 cal g−1 ext{cal g}^{-1} .

Question

Steam at 100°C is passed into one end of a 10 mm thick and 200 cm2 	ext{cm}^2 area copper cylinder. Water at 100°C is collected at the rate of 150 g min−1 	ext{g min}^{-1} at the other end of the cylinder. Find the temperature of the outer surface if the conductivity of copper is 0.8 cal s−1cm−1°C 	ext{cal s}^{-1} 	ext{cm}^{-1}	ext{°C} and the latent heat of steam is 540 cal g−1 	ext{cal g}^{-1} .

Accepted Answer

ঘ. 91.6°C

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