Question
Physical Sciences Question on Transfer of Heat
A thermally insulated room has only one square glass window of sides 1 m and thickness 5 mm through which heat can transfer in and out. If temperature difference between inside and outside the room is only 1°C then what will be the rate of heat energy transfer ? (Thermal conductivity of glass is 0.0025 )
A
1J / s
B
0.5 J/s
C
10 J / s
D
5 J / s
Answer
0.5 J/s
Explanation
Solution
The correct option is (B): 0.5 J/s