A Windowpane Is Half a Centimeter Thick and Has an Area

Multiple Choice

A windowpane is half a centimeter thick and has an area of 1.10 m².The temperature difference between the inside and outside surfaces of the pane is 19.0 °C.What is the rate of heat flow through this window? (Thermal conductivity for glass is 0.840 J/s⋅m⋅°C. )

A) 7 020 J/s
B) 3 510 J/s
C) 4 180 J/s
D) 1 850 J/s
E) 2 200 J/s