Temperature shows in cross section a wall consisting of four layers with thermal conductivities `K_(1)=0.06W//mK,K_(3)=0.04W//mK` and `K_(4)=0.10W//mK` the layer thickness are `L_(1)=1.5cm,L_(3)=2.8cm` and `L_(4)=3.5` cm. The temperature of interfaces is as shown in figure energy transfer through the wall is in steady state.
Q. Temperature of outer surface of sphere is

Temperature shows in cross section a wall consisting of four layers with thermal conductivities K_(1)=0.06W//mK,K_(3)=0.04W//mK and K_(4)=0.10W//mK the layer thickness are L_(1)=1.5cm,L_(3)=2.8cm and L_(4)=3.5 cm. The temperature of interfaces is as shown in figure energy transfer through the wall is in steady state. Q. Electric power of heater is:

Temperature shows in cross section a wall consisting of four layers with thermal conductivities K_(1)=0.06W//mK,K_(3)=0.04W//mK and K_(4)=0.10W//mK the layer thickness are L_(1)=1.5cm,L_(3)=2.8cm and L_(4)=3.5 cm. The temperature of interfaces is as shown in figure energy transfer through the wall is in steady state. Q. Thickness of hollow sphere is

Figure shows in cross section a wall consisting of four layers with thermal conductivities K_(1) = 0.06 W // mK, K_(3) = 0.04 W// mK and K_(4) = 0.10 W// mK . The layer thickness are L_(1) = 1.5 cm, L_(3) = 2.8 cm and L_(4) = 3.5 cm . The temperature of interfaces is as shown in figure. energy transfer through the wall is in steady state. the temperature of the interface between layer 3 and 4 is:

Figure shows in cross section a wall consisting of four layers with thermal conductivities K_(1) = 0.06 W // mK, K_(3) = 0.04 W// mK and K_(4) = 0.10 W// mK . The layer thickness are L_(1) = 1.5 cm, L_(3) = 2.8 cm and L_(4) = 3.5 cm . The temperature of interfaces is as shown in figure. energy transfer through the wall is in steady state. the temperature of the interface between layer 3 and 4 is:

Figure shows in cross section a wall consisting of four layers with thermal conductivities K_(1) = 0.06 W // mK, K_(3) = 0.04 W// mK and K_(4) = 0.10 W// mK . The layer thickness are L_(1) = 1.5 cm, L_(3) = 2.8 cm and L_(4) = 3.5 cm . The temperature of interfaces is as shown in figure. energy transfer through the wall is in steady state. the temperature of the interface between layer 3 and 4 is:

Figure shows in cros section a wall consisting of four layers with thermal conductivities K_(1)=0.06W//mK K_(3)=0.04W//mK and K_(4)=0.10W//mK . The layer thicknesses are L_(1)=1.5cm,L_(3)=2.8 cm and L_(4)=3.5cm the temperature of interfaces is as shown in figure. energy transfer through the wall is in steady state. Q. The temperature of the inteface between layers 2 and 3 is

Figure shows in cros section a wall consisting of four layers with thermal conductivities K_(1)=0.06W//mK K_(3)=0.04W//mK and K_(4)=0.10W//mK . The layer thicknesses are L_(1)=1.5cm,L_(3)=2.8 cm and L_(4)=3.5cm the temperature of interfaces is as shown in figure. energy transfer through the wall is in steady state. Q. The temperature of the inteface between layers 2 and 3 is

Figure shows ( in cross section ) a wall consisting of four layers, with thermal conductivities k_(1) = 0.060W//m.K, k_(3)= 0.040W//m.K , and k_(4) = 0.12W//m.K(k_(2) is not known). The layer thickness are L_(1) = 1.2 cm, L_(3) = 5.6 cm , and L_(4) = 4.0 cm ( L_(2) is not known ) . The known temperatures are T_(1) = 30^(@)C, T_(12) = 25^(@)C , and T_(4) = - 10^(@) C . Energy transfer through the wall is steady. What is interface temperature T_(34) ?

Figure shows the cross section of a wall made of three layers. The layer thicknesses are L_(1), L_(2) = 0.750L_(1), and L_(3) = 0.350L_(1) . The thermal conductivities are k_(1), k_(2) = 0.900k_(1) , and k_(3) = 0.800k_(1) . The temperature at the left side and right side of the wall are T_(H) = 30.0^(@)C and T_(C)= - 15.0^(@)C , respectively. Thermal conduction is steady . (a) What is the temperature difference Delta T_(2) across layer 2 ( between the left and right sides of the layer ) ? If k_(2) were, instead, equal to 1.1 k_(1) , (b) would the reate at which energy is conducted through the wall be greater than, less than, or the same as proviously, and (c ) what would be the value of Delta T_(2) ?

Two plates each of area A thickness L_(1) and L_(2) thermal conductivities K_(1) and K_(2) respectively are joined to from a single plate of thickness (L_(1)+L_(2)) If the temperatures of the free surfaces are theta_(1) and theta_(2) Calculate (a) Rate of flow of heat (b) Temperature of interface .