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Physics - Heat & Thermo Question with Solution | TestHub

PhysicsHeat & ThermoHeat TransferMedium2 min

PhysicsMediumnumerical

One end of a steel rod of length 1 m and area of cross section $4 \times 1 0^{- 6}$ m² is put in boiling water and the other end is kept in an ice bath at 0°C. If thermal conductivity of steel is 46 W/m°C, find the amount of ice melting per second if heat flow only by conduction. Given that the latent heat of fusion of ice is $3.36 \times 1 0^{5}$ J/kg.

Answer:

0.00

Solution:

$P = \frac{k A Δ T}{l} = \frac{46 \times 4 \times 1 0 ^{- 6} \times 100}{1} = 0.0184$ W. $\overset{m}{˙} = \frac{0.0184}{3.36 \times 1 0 ^{5}} = 5.476 \times 1 0^{- 8}$ kg/s = $5.476 \times 1 0^{- 5}$ g/s.

Subject:PhysicsTopic:Heat & ThermoSubtopic:Heat Transfer

⏱ 2m

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