Sdqgv

P. 3) A wall of a classroom in Chemical Engineering has a width of 12 m, a height of 3 m and an interior surface temperature of 15 "C. Since the temperature of this class is 25 C, find the amount of heat transferred between the wall and the classroom If the height of the classroom wall was 2.75 m , calculate the decrease in the amount of is1 lost from the wall in %.

v