The area of a glass window is 10 m^2 and its | vedclass

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(B) The rate of heat flow is given by the formula: $\frac{dQ}{dt} = \frac{KA(T_2 - T_1)}{dx}$ Given: Thermal conductivity $K = 0.2 \ W/(m \cdot K)$ Ar

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$2 	imes 10^{4} \ J$

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(B) The rate of heat flow is given by the formula: $\frac{dQ}{dt} = \frac{KA(T_2 - T_1)}{dx}$ Given: Thermal conductivity $K = 0.2 \ W/(m \cdot K)$ Area $A = 10 \ m^2$ Temperature difference $dT = 40^{\circ}C - 20^{\circ}C = 20^{\circ}C$ Thickness $dx = 2 \ mm = 2 	imes 10^{-3} \ m$ Substituting these values into the formula: $\frac{dQ}{dt} = \frac{0.2 	imes 10 	imes 20}{2 	imes 10^{-3}}$ $\frac{dQ}{dt} = \frac{40}{2 	imes 10^{-3}} = 20 	imes 10^3 = 2 	imes 10^4 \ J/s$ Therefore,the heat conducted per second is $2 	imes 10^4 \ J$.

The area of a glass window is $10 \ m^2$ and its thickness is $2 \ mm$. The outside and inside temperatures are $40^{\circ}C$ and $20^{\circ}C$ respectively. The thermal conductivity in $MKS$ units is $0.2$. The heat conducted per second into the room is ......

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