A picture window has dimensions of 1.7 m by 2.25 m and is made of glass 4.75 mm thick. On a winter day, the outside temperature is 25.5° C while the inside temperature is a comfortable at 19° C. (k of glass =0.075W/m.K) Calculate the following: a) the area of the window in square metres b) the temperature gradient (AT/Ax)in kelvin/metre b) the rate of heat lost through the window by conduction in watts/metre.kelvin

College Physics
11th Edition
ISBN:9781305952300
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Chapter1: Units, Trigonometry. And Vectors
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A picture window has dimensions of 1.7 m
by 2.25 m and is made of glass 4.75 mm
thick. On a winter day, the outside
temperature is 25.5° C while the inside
temperature is a comfortable at 19° C. (k of
glass =0.075W/m.K)
Calculate the following:
a) the area of the window in square
metres
b) the temperature gradient (AT/Ax)in
kelvin/metre
b) the rate of heat lost through the
window by conduction in
watts/metre.kelvin
Transcribed Image Text:A picture window has dimensions of 1.7 m by 2.25 m and is made of glass 4.75 mm thick. On a winter day, the outside temperature is 25.5° C while the inside temperature is a comfortable at 19° C. (k of glass =0.075W/m.K) Calculate the following: a) the area of the window in square metres b) the temperature gradient (AT/Ax)in kelvin/metre b) the rate of heat lost through the window by conduction in watts/metre.kelvin
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