Solved Problem on Heat Transfer

GATE 2013 : Mechanical Engineering

Q. Consider one-dimensional steady state heat conduction, without heat generation, in a plane wall; with boundary conditions as shown in the figure below. The conductivity of the wall is given by k = k₀ + bT ; where k₀ and b are positive constants, and T is temperature.

As x increases, the temperature gradient ( dT dx ) will

Options:

(A) remain constant (B) be zero (C) increase (D) decrease

Ans:

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