The two faces of metal plate of thickness 40mm and area 102m2 maintained at 273K and 373K. The coefficient of thermal conductivity of the metal is 380 Wm-1k-1 Find the quantity of heat flows, through the plate in one hour.
d = 40mm = 40 × 10-3
m = 0.04m
A = 102m2
θ2 = 273k
θ1 =37K
K = 380Wm-1k-1
t = 1hr = 3600 seconds
The quantity of heat that flows in one hour is
Q = 3.42 × 1011J
