1. Cellophane is being used to keep food moist at 38C. Calculate the loss of water vapor in g/d at steady state for a warping 0.1mm thick and an area 0.2m2 when the vapor pressure of water vapor inside is 10mmHg and the air outside contains water vapor at a pressure of 5mmHg. Use the larger permeability in Table 6.51. Tante 6.5-1. Diffusivities and Permeabilities in Solids