If, with steady state heat flow established, you double the thickness of a wall built from solid uniform material, the rate of heat loss for a given temperature difference across the thickness will
A) become one-half its original value.
B) also double.
C) become one-fourth its original value.
D) become 1/ $\sqrt { 2 }$ of its original value.
E) become four times its original value.

Question

Quizplus · Accepted Answer

Doubling the thickness of the wall increases the thermal resistance, which reduces the rate of heat loss to half its original value, assuming the same temperature difference and material properties.

If, with Steady State Heat Flow Established, You Double the Thickness