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A glass window 0.50 cm thick measures 89 cm by 38 cm .?
How much heat flows through this window per minute if the inside and outside temperatures differ by 14 ∘C ?
Express your answer using two significant figures.
1 Answer
- billrussell42Lv 72 years ago
P = K x ∆T x A / d
P = 0.96 x 14 x (0.89)(0.38) / (0.005) = 909 watts rounded to 910 watts
Thermal Conductivity
P = K x ∆T x A / d
K is thermal conductivity in W/m•K
P is power in watts transferred through the material
K is thermal conductivity of the material in W/m•K
∆T is change in temperature across the material
A is cross-sectional area in m²
d is thickness in m
Glass, window 0.96 W/m•K