5. A large deep lake, which initially had a uniform O2 concentration of 1.5 kg/m, has its 0 surface concentration suddenly raised to and maintained at 8.0 kg/m. Sketch the concentration profile of O in the lake, Co2, as a function of the lake depth, z, after 3600 seconds. The lake is at 283 K. Note: for your calculations, you will need to estimate the diffusion coefficient of O in water. The viscosity of water is 1.38 cP.

5. A large deep lake, which initially had a uniform O2 concentration of 1.5kg/m3, has its O2 surface concentration suddenly raised to and maintained at 8.0kg/m3. Sketch the concentration profile of O2 in the lake, C02, as a function of the lake depth, z, after 3600 seconds. The lake is at 283K. Note: for your calculations, you will need to estimate the diffusion coefficient of O2 in water. The viscosity of water is 1.38cP