If the R-Value of a Wall Is 10 Ft2-˚F-Hr/Btu, Then $\Delta$

Multiple Choice

If the R-value of a wall is 10 ft2-˚F-hr/Btu, then the rate of heat transfer through a 2 ft - 3 ft section of wall, with $\Delta$ T = 50 $\degree$ F, will be:

A) 10
B) 30
C) 500
D) 3000
E) 10,000 Btu/hr