One of the easiest ways to begin to explore fugacities in nonideal solutions is to model solubilities of crystalline solids dissolved in high pressure gases. In this case, the crystalline solids remain as a pure phase in equilibrium with a vapor mixture, and the fugacity of the “solid” component must be the same in the … Read more
A mixture of methane and ethylene exists as a single gas phase in a spherical tank (10 m3) on the grounds of a refinery. The mixture is at 298 K and 1 MPa. It is a spring day, and the atmospheric temperature is also 298 K. The mole fraction of ethylene is 20 mol%. Your … Read more
Revenue growth rate (For past: calculate based on past revenues. For forecast: provide reasonable estimate. Note that the year 5 growth rate will be used in the OFCF perpetuity formula. Ensure it’s a reasonable choice) Revenue (For past: retrieve from P&L. For forecast: calculate based on growth rates) Net Income (For past: retrieve from P&L. … Read more
MARKETING MANAGEMENT – MKTG5561 GROUP PROJECT (25%) FOOD WASTE This assignment is a semester long project that you will be working on as a team of 4 to 5 students, which will be formed within the first week of semester. Once groups are formed they cannot be changed. This group project incorporates many marketing management … Read more
Benzaldehyde is known in the flavor industry as bitter almond oil. It has a cherry or almond essence. It may be possible to recover it using CO2 for a portion of the processing. Explore the phase behavior of the CO2(1) + benzaldehyde(2) system, using the Peng-Robinson equation to categorize the system among the types discussed in … Read more
A reaction occurs with all components present in liquid and gas phases. Compositions in both phases are measured and the activities are calculated. The equilibrium constant value calculated using vapor phase activities is different from the equilibrium constant calculated using liquid phase activities. Is something wrong? Q462 Describe the behavior of the … Read more
One suggestion for sequestering CO2 is to synthesize carbonate polymers. Polycarbonate is well known for its strength and transparency. To gauge the feasibility of this approach, consider the synthesis of dimethyl carbonate (DMC) from methanol and CO2 at 350 K. (a) Write a balanced stoichiometric equation for this reaction. Highlight any by-products. (b) Estimate the Ka value for … Read more
For nonylglucoside, NG, thermodynamic data for demicellization in water are presented in problem 17.26. Model the micelle reaction as nS ⇄ Mn where S is free surfactant and Mn is a micelle. Treat the solution as an ideal solution. Vary the total concentration of NG from 0 up to 20 mmol/L. Water is 55.5 mol/L. Calculate … Read more
A solution of NaHCO3 and HCl is prepared such that the total carbon concentration is 1E-3 M and the total Cl concentration is 2E-3 M. Calculate the pH and concentrations of species present. Assume that the pressure is sufficiently that any evolved CO2 remains in solution. Estimate the partial pressure of the CO2 assuming the MAB model. Plot … Read more
Model a soft drink as a solution of water with CO2 dissolved at 298.15 K. In this way we ignore the sugar, flavor, and color. The Henry’s law constant for CO2 at 298.15 K is 0.035 (mol/kg-bar). (a) What pH and composition exist when the vapor phase is 3.5 bar absolute at room temperature ignoring O2 or N2 present? … Read more
