2) Number of Ideal Stages for a Hydrocarbon Distillation A four component mixture of ethylbenzene (zı=0.06, aı=1.25), p-xylene (z2=0.40, a2=1.15), 0-xylene (z3=0.30, a3=1.00) and cumene (z4=0.24, a4=0.68) is at its bubble point and enters a column at 80 kmole/hr. We would like to recover 99% of the p-xylene in the distillate and 96% of the o-xylene in the bottoms product. a) Determine the minimum number of stages, Fenske Nmin. b) Determine Rmin from Underwood assuming the relative volatilities provided. c) Determine the ideal number of stages required if a reflux ratio of three times the minimum is used. d) Determine N, R values using Gilliland, et al. How do the number of stages compare?

The volume of a liquid varies with temperature according to the following relationship: (³) V = V300K * (0.7 0.75 +3.9 * 10-4 + (²) + + 1.48 * 10-6 where V300K is the liquid's volume at 300K. Calculate the expansion coefficient of this liquid, x, at 320K.

Absolute (100%) ethanol is produced from 95% ethanol and 5% water using the Keyes distillation process. Another component, benzene, is added to lower the instability of the alcohol. With these conditions, the product from the top of the distiller is a constant-boiling mixture of 18.5% ethanol, 7.4% H₂O, and 74.1% benzene, as shown here: 95% ethanol 5% water Benzene Distillation tower P(absolute ethanol) = 0.785 g/cm³ P(benzene) = 0.872 g/cm³ 74.1% benzene 18.5% ethanol 7.4% water 100% ethanol Calculate the volume of benzene that should be fed to the still to produce 250 L of absolute ethanol, using this data:

1) Ethanol-Water Separations. We wish to separate ethanol from water in a sieve-plate distillation column with a total condenser and a partial reboiler. There are two feed streams: Thermal State subcooled liquid* saturated vapor *Feed 2 condenses 0.25 moles of vapor for every mole of feed. The bottoms product should be 2% (mol) ethanol and the distillate should be 72% (mol) ethanol. Feed Flowrate (mol/hr) ZF 1 0.4 2 0.3 200 300 Notes: • The reflux ratio is equal to (1.0) and the feeds are to be input at their optimum location(s). • Both feeds are being input into the column, e.g. this is not intended to be solving for two unique columns but just one that has two input feed streams. • Equilibrium data for Ethanol-Water at 1 bar is shown in the table. You may also identify /use other experimental data (web sources, library) for this system. a) What are the flowrates of the distillate and bottoms products? b) What are the flowrates of liquid and vapor on stages between the two feeds…

1. Describe this diagram in terms of what information it gives you and how you can use this to determine a heat treatment for steel (10). 2. Describe a simple continuous cooling heat treatment to a) Bainite to pearlite 3. Describe the difference between the microstructure of bainite and tempered pearlite

Solve correctly please need all parts.

Part a plz!

Using the provided ternary phase diagram 1. What is the number of phases in this liquid mixture? Liquid Amount || Amount (mol) A || 15 B || 20 C || 7.5 xT || xW || xE 0.5 || 0.25 || 0.25 0.33 ||0.33 || 0.33 0.1 || 0.8 || 0.2 2. What are the phase compositions of the mixtures in Problem 1? What are the trichloromethane-rich and water-rich phases' compositions if there are two phases?

We are tasked to do iteration in mass and energy balances, wherein we will look for the final temperature. When there are two components, like CO and CO2, do you add their enthalpy out (i.e. 3.376 + 0.557x10-3T - 0.031x105T-2 for CO and 5.457 + 1.045x10-3T - 1.157x105T-2 for CO2) to use for the calculation of Cp, mean? If yes, what would be the value of Cp, mean?

100 mol of 0xygen is mixed with 300 mol 0f nitrogen at SATP (T = 298.15 K, P = 105 Pa).Calculate the t0tal v0lume 0f the mixture as per Amagat's law.