The rate of heat conduction out of a window on a winter day is rapid enough to chill the air next to it. To see just how rapidly windows conduct heat, calculate the rate of conduction in watts through a 3.32 m2 window that is 0.695 cm thick if the temperatures of the inner and outer surfaces are 500C and 10.0C, respectively. This rapid rate will not be maintained the inner surface will cool, and frost may even form. The thermal conductivity of glass is 0.84 J/(s - m - C). W