1.The dimensionless henry's constant for TCE at 25 degrees celsius is 0.4. A sealed glass vial is prepared that has an air volum of 4mL overlying an aquesous volume of 36mL. TCE is added to the aqueous phase so that initally it has an aqueous phase concentration of 100 ppb. After the system equilibrates, what will be the concentration of TCE in the aqueous phase?
2.The bottom of a triangular channel is designed to be the best hydraulic section for critical flow at a depth of 1.25m; the sidewalls above the bottom section are vertical and the same width as the triangular section. Find the discharge and Froude number when the total depth in the channel is: a) 0.75m, and b) 2.0m