(Solved): Cost of Heat Loss through a Wall A wall is \( 2 \mathrm{~m} \) high and \( 10 \mathrm{~m} \) long. ...

Cost of Heat Loss through a Wall A wall is \( 2 \mathrm{~m} \) high and \( 10 \mathrm{~m} \) long. It is covered with sheets of insulation that are \( 2 \mathrm{~cm} \) thick and have thermal conductivity of \( 0.1 \mathrm{~W} / \mathrm{m} \cdot \mathrm{K} \). The inside temperature of the insulation is \( 25^{\circ} \mathrm{C} \) and its outside temperature is \( 10^{\circ} \mathrm{C} \). A. Is the heat transfer from inside to outside or from outside to inside, and why? B. What are the magnitudes of the steady heat flux and heat-transfer rate through the wall? C. If energy costs \( \$ 0.10 / \mathrm{kW}-\mathrm{hr} \), what is the daily cost of the heat loss through the wall?