An Architect Is Interested in Estimating the Heat Loss (In

Multiple Choice

An architect is interested in estimating the heat loss (in kcal/s) through a sheet of insulating material as a function of the thickness of the sheet. Assuming fixed temperatures on the two faces of the sheet, which one of the graphs in the figure best represents the rate of heat transfer as a function of the thickness of the insulating sheet?

A) A
B) B
C) C
D) D
E) E