Consider a water bottle with a 3-cm-diameter polypropylene cap (density = 0.9 g cm-³), and the cap's thickness is 0.2 mm

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Consider A Water Bottle With A 3 Cm Diameter Polypropylene Cap Density 0 9 G Cm And The Cap S Thickness Is 0 2 Mm 1 (90.03 KiB) Viewed 15 times

Consider a water bottle with a 3-cm-diameter polypropylene cap (density = 0.9 g cm-³), and the cap's thickness is 0.2 mm. The data below shows the solubility of water vapor in polypropylene at different water vapor partial pressures: solubility (ppm by weight) pressure (kPa) 101.3 405 810 202.6 303.9 1215 405.2 506.5 1620 2025 a) Plot the data and find an equation relating the water vapor concetration and partial pressure. (10 points) b) How long will it take for 100 mL of water to evaporate from a closed bottle at 30°C if the relative humidity is 20%? Assume that evaporation is not the rate limiting step, and only the cap is permeable. The molecular weight of hydrogen and oxygen are 1g mol-¹ and 16 g mol-¹, respectively. The vapor pressure of water at 30 °C is 4.25 kPa, and the diffusion coefficient of water vapor is 10 cm² s-¹. (20 points) 3 cm H20 *Relative humidity is the ratio between water vapor's partial pressure in air and its vapor pressure.