The thermalconductivity of a sheet of rigid, extrudedinsulation is reported to be k = 0.030W/mK. Themeasured temperature difference across a 20-mm-thicksheet of the material is T1-T2=15 ̊C. a)What is...

The thermalconductivity of a sheet of rigid, extrudedinsulation is reported to be k = 0.030W/mK. Themeasured temperature difference across a 20-mm-thicksheet of the material is T1-T2=15 ̊C.

a)What is the heat flux through a 2 m x2 m sheet ofthe insulation?Consider a one-dimensionalconduction in the x-direction and steady-stateconditionswith constant properties.

b)What is the rate of heat transfer through the sheet of insulation?