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(a) arieff discuss the effect of temperature, pressure, and viscosity on diffusion in gases and liquids (b) Use the flux equation to convert ki' to: (i). ki?: (ii). ka. (iii). kict (c) A well located in a desert is 15m deep to the water surface and 70cm in diameter. The air and the water in the well are at 30.C and atmospheric pressure. A slight breete of dry air is flowing across the top of the well. The diffusivity of water in air is 2.616103m2/s and the vapor pressure of water is defined as: PAA=61.078101exp(r+m+x1137t) whete P4A is in kPa and T is in C. (i) Derive an expression of the flux of water. (ii) Determine the mass rate of water. Repeat for T=47. C