Physics - Heat & Thermo Question with Solution | TestHub

PhysicsHeat & ThermoHeat TransferHard2 min

PhysicsHardinteger

A slab of thickness $l$ has conductivity proportional to $T$ . Its faces are at 400 K and 900 K. Find the temperature at the mid plane, in K.

Answer:

674

Solution:

$T^{3/2}$ is linear in $x$ : $T^{3/2} = \frac{40 0 ^{3/2} + 90 0 ^{3/2}}{2} = \frac{8000 + 27000}{2} = 17500$ , so $T = 1750 0^{2/3} = 674.0$ K.

Subject:PhysicsTopic:Heat & ThermoSubtopic:Heat Transfer

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