IB Physics Thermal Conduction

This tutorial sheet practises thermal conduction.

A double-glazed window has two glass panes each of thickness W and thermal conductivity K. The area of each glass sheet is A. The air space between the two glass sheets has a thickness w and thermal conductivity k. The inside temperature is Ti and the outside temperature is To.

  1. Show that the rate at which energy is conducted through the window is A( Ti - To )/( 2W/K + w/k ).