A double-pane window consists of two glass sheets each of area `1m^(2)` and thickness `0.01m` separated by a `0.05 m` thick stagnant air space. In the steady state, the room glass interface and the glass outdoor interface are at constant temperature of `27^(@)C` and `0^(@)C`, respectively.
`(a)` Calculate the rate of heat flow through the window pane.
`(b)` Find the temperatures of other interfaces.
[Take: thermal conductivities as `K_(glass)=0.8Wm^(-1)K^(-1)` and `K_(air)=0.08Wm^(-1)K^(-1)`]

A double pan window used for insulating a room thermally from outside consists of two glass sheets each of area 1 m^(2) and thickness 0.01m separated by 0.05 m thick stagnant air space. In the steady state, the room-glass interface and the glass-outdoor interface are at constant temperatures of 27^(@)C and 0^(@)C respectively. The thermal conductivity of glass is 0.8 Wm^(-1)K^(-1) and of air 0.08 Wm^(-1)K^(-1) . Answer the following questions. (a) Calculate the temperature of the inner glass-air interface. (b) Calculate the temperature of the outer glass-air interface. (c) Calculate the rate of flow of heat through the window pane.

A double pan window used for insulating a room thermally from outside consists of two glass sheets each of area 1 m^(2) and thickness 0.01m separated by 0.05 m thick stagnant air space. In the steady state, the room-glass interface and the glass-outdoor interface are at constant temperatures of 27^(@)C and 0^(@)C respectively. The thermal conductivity of glass is 0.8 Wm^(-1)K^(-1) and of air 0.08 Wm^(-1)K^(-1) . Answer the following questions. (a) Calculate the temperature of the inner glass-air interface. (b) Calculate the temperature of the outer glass-air interface. (c) Calculate the rate of flow of heat through the window pane.

A double pan window used for insulating a room thermally from outside consists of two glass sheets each of area 1 m^(2) and thickness 0.01m separated by 0.05 m thick stagnant air space. In the steady state, the room-glass interface and the glass-outdoor interface are at constant temperatures of 27^(@)C and 0^(@)C respectively. The thermal conductivity of glass is 0.8 Wm^(-1)K^(-1) and of air 0.08 Wm^(-1)K^(-1) . Answer the following questions. (a) Calculate the temperature of the inner glass-air interface. (b) Calculate the temperature of the outer glass-air interface. (c) Calculate the rate of flow of heat through the window pane.

A window used to thermally insulate a room from outside consists of two parallel glass sheets each of area 2.6 m^(2) and thickness 1 cm separated by 5 cm thick stagnant air. In the steady state, the room glass interface is at 18^(@) C and the glass-outdoor interface is at and air are respectively 0.8 Wm^(-1) K^(-1) and 0.08 Wm^(-1) K^(-1) , the rate of flow of heat through the window is

A window with double-pane is used for insulating a room thermally from outside. It consists of two glass sheets, each of area A and thickness d with a separation x between them. At equilibrium, the room-glass interface and glass-outside interface are at constant temperature of T_r and T_a respectively. What will the rate of heat flow through the window pane? The thermal conductivity of glass and air are K_1 and K_2 , respectively.

The critical angle for glass air interface is C and for glass water interface ic C' . How are C and C' related ?

The critical angle for glass air interface is C and for glass water interface is c' . How are C and C' related ?

Calculate the rate of loss heat through a glass window of area 1000sq.cm. and thickness 4mm when the temperature inside is 37°C and outside is 5°C ( K for glass =0.0022)

The critical angle for glass-air interface is :