A) 2.47 hr
B) 4.27 hr
C) 7.42 hr
D) 4.72 hr
Correct Answer: A
Solution :
\[mL=\frac{KA\Delta \theta \,\,t}{\Delta x}\] Þ \[500\times 80=\frac{0.0075\times 75\times (40-0)t}{5}\] Þ t = 8.9 ´ 103 sec = 2.47 hr.You need to login to perform this action.
You will be redirected in
3 sec