The area of the glass of a window of a room is `10 m^(2)` and thickness 2 mm . The outer and inner temperature are `40^(@)C` and `20^(@)C` respectively. Thermal conductivity of glass in MKS system is 0.2. The heat flowing in the room per second will be

Total area of glass - planes of the window in a room is 10 m^2 and thickness is 2mm .Temperature outside and inside of the room are respectively 5^@ C and 20^@C . What is the amount of heat in calories flowing out of windows of the room per minute ? K for glass - 0.84 in mks system

Calculate the rate of loss of heat through a glass window of area 1000 cm2 and thickness of 4 mm, when temperature inside is 27^@ C and outside is -5^@ C . Coefficient of thermal conductivity of glass is 0.022 cal/ s cm^@ C.

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.

Calculate the rate of loss of heat through a glass window of area 1000 cm^(2) and thickness 0.4 cm when temperature inside is 37^(@)C and outside is -5^@)C . Coefficient of thermal conductivity of glass is 2.2 xx 10^(-3) cal s^(-1) cm^(-1) K^(-1) .

The area of a glass window is 1.2 m^(2) . The thickness of the glass is 2.2 mm. If the temperature outside is 36°C and the temperature inside is 26°, calculate the heat flowing into the room every hour. Thermal conductivity of glass is 0.8 Wm^(-1) K^(-1) .

The outer faces of a rectangular slab made of equal thickness of iron and brass are maintained at 100^(@)C and 0^(@)C respectively. The temperature at the interface is (Thermal conductivity of iron and brass are 0.2 and 0.3 respectively)

The outer faces of a rectangular slab made of equal thickness of iron and brass are maintained at 100^(@)C and 0^(@)C respectively. The temperature at the interface is (Thermal conductivity of iron and brass are 0.2 and 0.3 respectively)