A long metallic bar is carrying heat from one of its ends to the other end under steady-state. The variation of temperature θ along the length x of the bar from its hot end is best described by which of the following figure?

Question

A long metallic bar is carrying heat from one of its ends to the other end under steady-state. The variation of temperature θ along the length x of the bar from its hot end is best described by which of the following figure?, , , ,

MARKS App · Accepted Answer

We know that d Q d t = k A d θ d x In steady-state flow of heat d θ = d Q d t . 1 k A d x ⇒ θ H - θ = k ′ x ⇒ θ = θ H - k ′ x Equation θ = θ H - k ′ x represents a straight line.

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