The van’t Hoff Equation is a mathematical relationship relat…
The van’t Hoff Equation is a mathematical relationship relating the equilibrium constant to the temperature of the system: lnKeq=-∆Horeaction/R(1/T) +∆Soreaction/R Where ΔHoreaction and ΔSoreaction are correspondently standard enthalpy and entropy changes of reaction and R is the universal gas constant (8.314 J mol-1k-1). The graphical interpretation of van’t Hoff Equation in form of the plot of lnKeq vs 1/T gives you an opportunity to determine both thermodynamic functions from the value of the equilibrium constant: the slope of this plot is equal to -ΔHoreaction/R and y-intercept – to ΔSoreaction/R. Note that your values will come in Joules and the temperature for all thermodynamics calculations should be converted to Kelvins. The student explored the famous Haber process: N2(g) + 3H2(g) => 2NH3(g), and obtained the following data for the equilibrium constant: Temperature, oC Equilibrium constant 25.00 3.86E+05 75.00 2.27E+03 125.0 4.04E+01 175.0 1.52E+00 225.0 8.37E-02 Assignment and Rubric: Use your Lab Report Template to answer the questions below. Follow all instructions to get full credit. Please answer the following questions: Make the necessary calculations and build the data table lnKeq vs 1/T Generate a graph of ln Keq – 1/T and report the trendline equation and R2. (2 pts) Using the slope calculate the enthalpy change, show your work, include, and report correct units. (2 pts) Using the y-intercept calculate the entropy change, show your work, include, and report correct units. ( 2pts) Assuming the accepted value for the standard enthalpy change at 500K to be -99.88 kJ, calculate the % error of the experiment? and explain the source of the error. (2pts) Upload your calculation to Midterm Exam Required Calculations & Partial Credit after submitting this Midterm for 4 additional points Results:trendline equation: R2: ΔH: ΔS: %Error:
Read DetailsA physical therapist is evaluating a patient with a two-year…
A physical therapist is evaluating a patient with a two-year history of wrist and hand pain along with weakness and intermittent numbness and tingling. The patient reports that after seeing an orthopedic hand surgeon, they had bilateral carpal tunnel release surgery and the symptoms remained unchanged. Based on their physical presentation and history, what is the MOST LIKELY cause of their symptoms?
Read DetailsA company is about to install a Linux server to provide e‑co…
A company is about to install a Linux server to provide e‑commerce services to external users. The manager of the production support team wants to allow six (6) employees to have full access to this server so they can perform appropriate support and maintenance activities. Explain how the manager should allow these employees to have full access to the server using best practice as discussed in this course. Also explain why this best practice is better than alternative ways to provide full access.
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