At what rate is heat lost through a 1.0 m x 1.5 m rectangular glass windowpane t
ID: 2092700 • Letter: A
Question
At what rate is heat lost through a 1.0 m x 1.5 m rectangular glass windowpane that is 0.5 cm thick when the inside temperature is 20 At what rate is heat lost through a 1.0 m x 1.5 m rectangular glass windowpane that is 0.5 cm thick when the inside temperature is 20 At what rate is heat lost through a 1.0 m x 1.5 m rectangular glass windowpane that is 0.5 cm thick when the inside temperature is 20 At what rate is heat lost through a 1.0 m x 1.5 m rectangular glass windowpane that is 0.5 cm thick when the inside temperature is 20Explanation / Answer
heat lost rate= KA dt/L
now,
Since Area (A)= (1*1.5)m=1.5 m^2
thickness (L)= .005 m
temp difference (dt)= 15 degree C
thermal conductivity (K)= 0.8 W/m degreeC
so, heat lost rate= 3600 W=3.6 KW
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