A vessel has a bottom of area 3 × 1 0 − 3 m² and thickness 2 mm, with k = 60 W/m°C. When the water boils, 150 g of water vaporises per minute. L = 2.26 × 1 0 6 J/kg. Find the temperature of the outer

Question

A vessel has a bottom of area 3 × 1 0 − 3 m² and thickness 2 mm, with k = 60 W/m°C. When the water boils, 150 g of water vaporises per minute. L = 2.26 × 1 0 6 J/kg. Find the temperature of the outer bottom surface, in °C.

TestHub · Accepted Answer

P = 60 0.15 × 2.26 × 1 0 6 ​ = 5650 W. Δ T = k A P d ​ = 60 × 3 × 1 0 − 3 5650 × 2 × 1 0 − 3 ​ = 62.8 , so the surface is at 162.8 ∘ C.

Physics - Heat & Thermo Question with Solution | TestHub

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