CHM ENG 142 Midterm: 142 Second Midterm 2020 final version (1)

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Open book and notes, calculating devices, internet access disabled. I hereby certify that the solutions i am turning in for this exam are entirely my own work and that i have not used internet materials or other students to help me solve these exam problems. Methanol is produced from methane and water via the following set of elementary steps: H2o + 2 * h* + oh* Ch4 + 2 * ch3* + h* Ch3* + oh* ch3oh + 2 * Quasi-equilibrated: derive an expression for the rate of methanol formation as a function of rate constants, concentrations of gas-phase species, and total surface sites (l). (10 points, simplify the rate given that step 2 is quasi-equilibrated. Based on these expressions, qualitatively plot the dependence of the rate on the concentration of ch4 at a constant concentration of h2o. (10 points)