User talk:Stephen Mac'ch

== Determine the energy transferred in 1 hour by conduction through a concrete wall 2m high, 3.65m long and 0.2m thick. If one side of the wall is held at 200C and the other side is at 50C.(the coefficient of conductivity = 0.2Wm-1K-1 ==

From Fourrier law, Q=KAᐃTt/x where, Q=Heat energy, K=coefficient of conductivity, A=Surface area, ᐃT= change in temperature, t=time taken for thermal conduction, x= thickness of the conductor Therefore, Q= 0.2X2X3.65X(20-5)/0.2 Q=109.5 Joules Stephen Mac&#39;ch (talk) 11:36, 9 February 2023 (UTC)