A building designer compares two window designs having identical surface area \(A\) and identical total thickness \(L\). Window 1 consists of a single solid pane of glass, whereas Window 2 consists of two thin glass panes enclosing a trapped, stationary layer of air of total combined thickness \(L\). The same constant temperature difference \(\Delta T\) is maintained across the interior and exterior surfaces of both windows. Which of the following correctly compares the rate of thermal conduction through Window 2 to that through Window 1 and provides the correct physical justification?