8-Consider a 0.8 m high and 1.5-m-wide double-pane window consisting of two 4-mm-thick layers of glass (k = 0.78 W/m °C) separated by a 10 mm-wide stagnant air space (k = 0.026 W/m . °C). Determine the steady transfer through this double-pane window and the rate of heat .

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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.