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Two models of a windowpane are made. In ...

Two models of a windowpane are made. In one model, two identical glass panes of thickness 3 mm are separated with an air gap of 3 mm. This composite system is fixed in the window of a room The other model consist of a single glass pane of thickness 3 mm, the temperature difference being the same as for the first model. the ratio of the heat flow fot the double pane to that for the single pane is
(`K_("glass")=2.5 xx10^(-4)cal//s.m.^(@)C` and `K_("air")=6.2 xx10^(-6)cal//s.m.^(@)C`).

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Two models of a windowpane are made, two identical glass panes of thickness 3 mm are separated with an air gap of 3mm . This composite system is fixed in the window of a room. The other model consists of a single glass pane of thickness 6mm , the temperature difference being the same as for first model. the ratio of the heat flow for the double pane to that for the single pane is (K_("glass") = 2.5 xx 10^(-4) cal//s.m.^(@)C and K_("air") = 6.2 xx 10^(-6)cal//s.m.^(@)C)

Two models of a windowpane are made, two identical glass panes of thickness 3 mm are separated with an air gap of 3mm . This composite system is fixed in the window of a room. The other model consists of a single glass pane of thickness 6mm , the temperature difference being the same as for first model. the ratio of the heat flow for the double pane to that for the single pane is (K_("glass") = 2.5 xx 10^(-4) cal//s.m.^(@)C and K_("air") = 6.2 xx 10^(-6)cal//s.m.^(@)C)

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