146433 $1.56 \times 10^{5} \mathrm{~J}$ of heat is conducted through a $2 \mathrm{~m}^{2}$ wall of $12 \mathrm{~cm}$ thick in one hour. Temperature difference between the two sides of the wall is $20^{\circ} \mathrm{C}$. The thermal conductivity of the material of the wall is (in $\mathrm{W} \mathrm{m}^{-1} \mathrm{~K}^{-1}$ )
146433 $1.56 \times 10^{5} \mathrm{~J}$ of heat is conducted through a $2 \mathrm{~m}^{2}$ wall of $12 \mathrm{~cm}$ thick in one hour. Temperature difference between the two sides of the wall is $20^{\circ} \mathrm{C}$. The thermal conductivity of the material of the wall is (in $\mathrm{W} \mathrm{m}^{-1} \mathrm{~K}^{-1}$ )
146433 $1.56 \times 10^{5} \mathrm{~J}$ of heat is conducted through a $2 \mathrm{~m}^{2}$ wall of $12 \mathrm{~cm}$ thick in one hour. Temperature difference between the two sides of the wall is $20^{\circ} \mathrm{C}$. The thermal conductivity of the material of the wall is (in $\mathrm{W} \mathrm{m}^{-1} \mathrm{~K}^{-1}$ )
146433 $1.56 \times 10^{5} \mathrm{~J}$ of heat is conducted through a $2 \mathrm{~m}^{2}$ wall of $12 \mathrm{~cm}$ thick in one hour. Temperature difference between the two sides of the wall is $20^{\circ} \mathrm{C}$. The thermal conductivity of the material of the wall is (in $\mathrm{W} \mathrm{m}^{-1} \mathrm{~K}^{-1}$ )