During a test on pipe lagging a 2 metre length of pipe, 80 mm external diameter was covered with a 40 mm thickness of lagging. The pipe was then coupled to a steam main which supplied steam at 700 kPa and 0.9 dry. As a result of heat loss through the lagging, 0.565 kg of condensate was collected from the pipe in 1 hour. The condensate was at saturation temperature for 700 kPa. The outside surface temperature of the lagging was 38C. Assuming that the inside surface of the lagging was the same as the saturation temperature of the steam, estimate the coefficient of thermal conductivity of the lagging in W/(m.K). (0.12668 W/(m.K)