Question

Henry’s constant, KH. A biofuel researcher is running an experiment to produce methane from wastewater treatment plant sludge. The researcher places the sludge and a microbial inoculum into a sealed glass bottle rated to 20 psi, and is worried that if the pressure within the bottle becomes too high, that the glass may break. During the experiment, the aqueous concentration of methane in the closed bottle reaches 20 ppm. Determine the partial pressure of methane (PCH4) in the headspace at equilibrium if the KH,CH4 = 1.42 * 10-3 mol/L atm. Will the bottle break? (Answer: PCH4 = 0.88 atm).

Answer 1

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