Problem 3: Textbook 8.4.4. Possible solution steps: (10 points) a) Use MS Excel or MATLAB to plot p, vs. T and generate an exponential trend line. Display the trendline equation on the chart. b) Use the required concentration 2% (mole fraction) to calculate the required vapor pressure. c) Calculate the required temperature from the trendline equation. d) Calculate the mass required to saturate 100 m³ of air at the given temperature. **8.4.4. In a search for new fumigants, chloropicrin (CCI,NO₂) has been proposed. To be effective, the concentration of chloropicrin vapor must be 2.0% in air. The easiest way to get this concentration is to saturate air with chloropicrin from a container of liquid. Assume that the pressure on the container is 100 kPa. What temperature should be used to achieve the 2.0% concentration? From a handbook, the vapor-pressure data are (T.°C; vapor pressure, mm Hg): 0, 5.7; 10, 10.4: 15, 13.8; 20, 18.3; 25, 23.8; 30, 31.1. At this temperature and pressure, how many kilograms of chloropicrin are needed to saturate 100 m³ of air?

Fig: 1