Final answer:
The rate of heat flow through the glass window is 402.5 W.
Step-by-step explanation:
To calculate the rate of heat flow by conduction through a glass window, we use the formula:
Q = k * A * ΔT / d
Where Q is the rate of heat flow, k is the thermal conductivity of the material, A is the area of the window, ΔT is the temperature difference across the window, and d is the thickness of the window.
Plugging in the given values, we have:
Q = (k * A * ΔT) / d = (1.38 W/m·K * (2.0 m * 1.5 m) * (15.0 °C - (-5.0 °C))) / (3.6 mm)
Converting mm to m, we get:
Q = (1.38 W/m·K * (2.0 m * 1.5 m) * (15.0 °C - (-5.0 °C))) / (3.6 × 10^-3 m) = 402.5 W