[0.13] 1.56 X 10^5J of heat is conducted through a 2 m^2 wall of 12 cm thick in one hour.Temperatur

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1.56 X $10^5$J of heat is conducted through a 2 $m^2$ wall of 12 cm thick in one hour.
Temperature difference between the two sides of the wall is 20 °C.
The thermal conductivity of the material of the wall is (in W $m^{-1} K^{-1}$)

0.11

0.13

0.15

1.2

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