Tin 100 mm 50 mm 100 mm T out Figure 3 illustrates a compound wall constructed of an inner and outer layer of standard brick and a central layer of standard cavity wall insulation material. If the temperature inside is 21°C and the temperature outside -3°C, what is the rate of heat transfer through the wall per unit area? Data: take the value of the convective heat transfer coefficient for both inside and outside in (c) as 10 Wm ²K¹

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A: The given information in the problem is represented in the following attached image:

Conduction and Convection

When energy travels from one object to another it is said to have undergone heat transfer. Heat transfer is nothing but the transfer of thermal energy or internal energy from one thing to another, like e.g., when a vessel with water, kept on top of a burner, heats up because of the flame underneath it.