Heat flux meters use a very sensitive device known as a thermopile to measure the temperature difference across a thin, heat conducting film made of kapton (k = 0.345 W/m - K). If the thermopile can detect temperature differences of 0.1°C or more and the film thickness is2 mm, what is the minimum heat flux this meter can detect?

Heat flux meters use a very sensitive device known as a thermopile to measure the temperature difference across a thin, heat conducting film made of kapton (k = 0.345 W/m - K). If the thermopile can detect temperature differences of 0.1°C or more and the film thickness is2 mm, what is the minimum heat flux this meter can detect?