A circular window in the wall of a home has a diameter of 25 cm and is made of a single pane of glass 0.30 cm thick. The thermal conductivity for the glass is 0.63 W/(m·K). If 1.6 kJ of heat is lost through the window in 12 s, and if inside the house the temperature is 20 °C, what is the outside temperature?

Question

Quizplus · Accepted Answer

The heat transfer through the window can be calculated using the formula Q = (k * A * ΔT * t) / d. Solving for the outside temperature, we find it to be approximately 7.1 °C.

A Circular Window in the Wall of a Home Has