Choose the one alternative that best completes the statement or answers the question.
-A solid cylindrical bar conducts heat at a rate of 25 W from a hot to a cold reservoir under steady state conditions. If both the length and the diameter of this bar are doubled, the rate at which it
Will conduct heat between these reservoirs will be
A) 25 W
B) 12.5 W
C) 100 W
D) 200 W
E) 50 W