The glass windows of a room have a total area of 10 m2 and the glass is 4 mm thick. The quantity of heat that escapes from the room by conduction per second when the inside surface of the windows is 25°C and the outside surfaces are at 10°C is-
(The value of k is 0.84 W/mK)
1
12.6 kJ
2
31.5 kJ
3
25.3 kJ
4
71.42 kJ
5
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