The steady-state heat flux through the 1.9 cm argon gap in an insulated window is to be measured. Assuming pure conduction through the gas and windowpane temperatures of 20°C and –10°C, what is the...

The steady-state heat flux through the 1.9 cm argon gap in an insulated window is to be measured. Assuming pure conduction through the gas and windowpane temperatures of 20°C and –10°C, what is the heat flux if:

a. The thermal conductivity is given by kinetic theory?

b. The thermal conductivity is given by the Chapman-Enskog theory?