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Physics - Heat & Thermo Question with Solution | TestHub

PhysicsHeat & ThermoHeat TransferHard2 min

PhysicsHardnumerical

Two long coaxial cylindrical surfaces have radii 4.0 cm and 8.0 cm, and are held at 300 K (inner) and 360 K (outer). The space between them is filled with a uniform substance. Find the temperature at $r = 6.0$ cm, in K.

Answer:

335.10

Solution:

$T = T_{1} + (T_{2} - T_{1}) \frac{ln ( r / r _{1} )}{ln ( r _{2} / r _{1} )} = 300 + 60 \times \frac{ln 1.5}{ln 2} = 335.1$ K.

Subject:PhysicsTopic:Heat & ThermoSubtopic:Heat Transfer

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