Consider the following table that lists the orthobaric densities of the liquid and gaseous phases of trimethysilane in equilibrium along the liquid–vapor coexistence curve as a function of temperature: Liquid Gas T (K) ρ (g/cm3) T (K) ρ (g/cm3) 353.64 0.56470 353.55 0.01558 362.59 0.55200 360.30 0.01819 372.71 0.53670 367.21 0.02135 383.15 0.51982 367.32 0.02173 392.20 0.50395 372.18 0.02429 397.43 0.49415 376.94 0.02712 407.96 0.47268 387.19 0.03410 418.68 0.44718 389.70 0.03600 423.46 0.43276 397.35 0.04292 424.05 0.43241 405.44 0.05120 428.46 0.41881 407.74 0.05408 433.91 0.39943 413.30 0.06118 439.60 0.37373 418.56 0.06922 445.29 0.33434 418.73 0.06932 447.75 0.29942 424.37 0.07947 447.84 0.29732 429.94 0.09185 433.08 0.10000 434.70 0.10485 441.72 0.13289 443.55 0.14343 444.65 0.15128 445.36 0.15728 446.02 0.16344 446.63 0.17025 447.21 0.17830 447.36 0.18085 447.84 0.18954 448.14 0.19769 448.33 0.20482 Open the Microsoft Excel spreadsheet that is attached below and use it as a template to answer the following questions:CHM 4410 Exam 3 Question 4 Template.xlsx  (a) Plot the orthobaric densities of the liquid and gaseous phases of trimethylsilane as a function of temperature and fit the entire density data for both phases, individually, to a generic nth-degree polynomial (n = 5 or 6) using the built-in polynomial fitting function in Microsoft Excel. Include the equation (with ≥ 15 decimal places for the coefficients) and R2 value for the best-fit line for both plots.(b) Determine precise values for the critical temperature (in K), critical density (in g/cm3), and critical molar volume (in L/mol) of trimethylsilane (M = 74.20 g/mol). Hint: Use the Newton–Raphson method.Attach the raw Microsoft Excel spreadsheet containing your attempt of this question in XLS or XLSX format below. There should only be one graph for this question.

  QUESTION 4  (65)   CIVIL DRAWING   GIVEN:  The incomplete FLOOR PLAN of an office showing the outline of the walls, the positions of all the features, notes, and dimensions. A door and window schedule. A table of electrical symbols. A Reference Point A on the floor plan.   FLOOR PLAN INSTRUCTIONS: Answer this question on an A3 page. Draw the floorplan to a scale of 1:50 and according to the specifications. Reference Point A is 70 mm from the left of the page and 70 mm from the bottom of the page Show ALL the following features on the drawing: ALL the wall hatching detail. The sliding door (D1), doors (D2), and windows (W1+W2) ALL electrical features with the numbers, as indicated on the incomplete floor plan. The drawings must comply with the guidelines contained in the SANS 10143. Name the drawing OFFICE FLOORPLAN and add the SCALE.   SPECIFICATIONS FOR FLOOR PLAN: Load-bearing walls are 220 mm. Non-load bearing walls are 110 mm.   SECTIONAL STRIP FOUNDATION INSTRUCTIONS: Draw to scale of 1:10, a section through a load-bearing wall, and show all the details. (Foundation to slab) Add labels to FOUR parts of the drawing. Add the title and scale. Show FOUR dimensions on your drawing. START your drawing next to the floorplan.   SPECIFICATIONS FOR STRIP FOUNDATION: Foundation 600 mm wide x 250 mm high. Load-bearing wall 220 mm high. Foundation to floor slab 330 mm (from top of foundation to the bottom of the floor) The floor slab and hardcore filling are 85 mm thick. Screed is 25 mm thick.     Right-click on the button below to open QUESTION 4 FIGURE on a new page.    

Consider the following table that provides the vapor pressure of a liquid substance at various temperatures: Temperature (°C) Pressure (mmHg) 5.0 169.52 10.0 213.28 15.0 266.15 20.0 329.66 25.0 405.41 30.0 495.16 35.0 600.88 Open the Microsoft Excel spreadsheet that is attached below and use it as a template to answer the following questions:CHM 4410 Exam 3 Question 1 Template.xlsx  (a) Construct a digital Clausius–Clapeyron plot using this data. Assume that the molar enthalpy of vaporization is constant over the considered temperature range. Include the equation and R2 value for the best-fit line.(b) Calculate the molar enthalpy of vaporization (in kJ/mol) for the substance.(c) Determine the standard boiling point (in °C) of the substance.(d) Determine the standard boiling point (in °C) of a 4.00-m solution containing a nonelectrolyte dissolved in the substance (M = 84.93 g/mol).Attach the raw Microsoft Excel spreadsheet containing your attempt of this question in XLS or XLSX format below. There should only be one graph for this question.

  QUESTION 2 (35)   SOLID GEOMETRY   GIVEN:  The front view and auxiliary view of a right regular hexagonal prism  Cutting plane A-A    INSTRUCTIONS:  Answer this question on A3 paper   Draw, to a scale of 1:1, the following: 2.1 The given views  2.2 A left view  2.3 A sectional right view on cutting plane A-A 2.4 The true shape of the sectioned surface   NOTES:  Planning is essential. Show ALL necessary construction. NO hidden detail is required.     Right-click on the button below to open QUESTION 2 FIGURE on a new page.      

Consider the following table that lists the mole fraction of toluene in the liquid and vapor phases in a toluene/butanone mixture at 30 °C and various total pressures: χtoluene ytoluene Ptotal (torr) 0.0000 0.0000 270.52 0.0898 0.0410 255.93 0.2476 0.1154 231.77 0.3577 0.1762 214.71 0.5194 0.2772 189.31 0.6036 0.3393 175.53 0.7188 0.4450 155.25 0.8019 0.5435 139.45 0.9105 0.7284 116.23 1.0000 1.0000 92.22 Open the Microsoft Excel spreadsheet that is attached below and use it as a template to answer the following questions:CHM 4410 Exam 3 Question 2 Template.xlsx  (a) Plot the pressure-composition diagram for the solution as function of the mole fraction of butanone.(b) Plot the partial pressures for each component in the solution against the mole fraction of toluene. Assume ideal behavior for the vapor. (c) Determine the Henry’s Law constant (in torr) for each component in the solution. (d) Plot the activities (based on both Raoult’s Law and Henry’s Law, respectively) for each component against the mole fraction of toluene.(e) Plot the activity coefficients (based on both Raoult’s Law and Henry’s Law, respectively) for each component against the mole fraction of butanone.(f) Plot

Provide written explanations/definitions for the following in complete sentences:(a) chemical potential(b) general assumptions of the Clausius–Clapeyron equation(c) positive deviation from Raoult’s Law and reasoning(d) excess thermodynamic quantity(e) molarity(f) type 2–3 electrolyte and chemical exampleEnter your responses in the text box provided below.

1. What is the setting of the cartoon? (1)

SECTION A: TEXT A   Read the text  and answer Question 1 to 9. Click on the button below to open the text, “An encounter at sea.”

2. Multiple choice: Paragraph 2 – …the ‘putt-putt’ of her engine was lost in the big, quiet stillness of the afternoon.   Choose the best sentence to match the description above. (1)

5. Paragraph 3 and 4 – How is the whale made to seem mysterious?   Explain three ways, giving evidence from the text to support your answer. (3)