What is the maximum concentration of carbon possible in the FCC phase of iron before causing precipitation of either Fe3C or liquid? At what temperature is the carbon solubility in FCC iron a maximum?

This problem is related to bioprocess engineering. There is a problem named 'Lysine project'

There are some conditions for this problem:

•Annual capacity of lysine production: 100,000 ton

(each bioreactor volume < 100 m³)

- Microbial host: Corynebacterium

- Lysine productivity: 2 g lysine l-1 hr-1

- Cell respiration rate q_o2: 20 mmol O2 gDW-1 hr-1

- Cell concentration: 10 gDW l-1

- Dissolved oxygen concentration setting value: 2 mg O2 l-1

- Saturated dissolved oxygen concentration: 8 mg O2 l-1

I solve these tasks from above conditons(Result values should show exact number):

•Sizing of bioreactor

(Diameter, height, baffle etc.)

•Agitator type, agitator size

•Agitator operation condition: rotation speed (rpm)

•Aeration flow rate

What is meant by the term ‘sacrificial anode’? Use diagrams and/or equations to illustrate your answer.

Chemistry 252 has focused on two main topics: the nature of the equilibrium state, and the rates of processes that take place to achieve equilibrium, i.e., chemical kinetics.

Write a paragraph that compares the information content required to describe the equilibrium state with that necessary to describe the rate processes that connect reactants and products.   In your answer, include a discussion of the energy levels, molecular motions, and appropriate length scales of all important species involved in specifying the equilibrium state. Include a similar discussion for any key species that play a role in the reaction rates that establish equilibrium.   Indicate how the properties of these species are incorporated into a theory of reaction rates.

Topics that may be helpful in constructing your answer:

             Potential energy surface

             Reaction coordinate

             Partition functions    

             Transition state

             Saddle point

Your paragraph should be written in acceptable scientific prose. You should use complete sentences, and the logical flow of your arguments should be clear. There is no word limit, but preferably no longer than a page typed.

You are watching TV late at night and see an ad for the ACME Model #163 refrigeration and heating unit for only $99.99. The unit takes compressed air at 1.25 atm pressure and 75°F and produces two streams at atmospheric pressure, a refrigeration stream at -15°F and one at 90°F with no work or energy put into the system! Is this possible? [yes] Why or why not? [mass and energy balance work ] Prove your answer. Assume air is an ideal gas

Air Date: Tc = 238.5 R Pc = 37.2 atm Cp = 7 Btu/lbmole°F Sp. Gr. = 1.0

Answers are in brackets but I want to know why because I am a diligent student. lol.

Does isoctane/n octane mixture follow roults law?

Why do the Au NPs grow in the subsequent steps rather than just form more particles of the same initial size? ?

How does the gold colloid detect electrolytes such as NaCl? Explain what happens when NaCl is added to the solution?

How to convert wave function to matrix in H2 and LiH . And how to find the determinant(energy)?

1- How to find the Shear rate and stress

2- How to find visosity, and how to calculate visosity vs shear rate.

3- point of log log polt of vis

4- power law indices k,n ? and range of n?

2. Understand how much work and heat are transferred in an ideal heat engine or reverse heat engine.

a) What is the maximum work that I can get from a heat source at 450K and a cold sink at 298K? (0.338 J per joule of heat in at 450 K)

b) How much heat can I get from ideal reverse heat engine per Joule of energy of work if the outside temperature is 10oC and my house is at 25oC? (approx. 20 J)

In relation to LED technology

1) outline the problem the technology solves?

2) WHAT DOES THE TECHNOLOGY DO?

3) Identify the major material property requiremens ( strong, conductive, corrosion resistant, etc) and design constraints (eg. must be molded, must function within a temperature range, etc)