The two faces of a metal plate of thickness 40 mm and area 10-2m2 are maintained at 273 K and 373 K. The coefficient of thermal conductivity of metal is 380 w/m/K. Find the quantity of heat that flows through the plate in one hour.
d = 40 × 10-3m
A = 10-2m2,
t = 1 hr = 3600s,
θ1 = 373K,
θ1 = 2.73K and K= 380 W/m/K
= 34.6×106J.
