How would the following factors affect Rf values in the separation of compounds by Thin-layer chromotrography?

a) Use of filter paper in the solvent chamber while developing a plate.

b) The solvent chamber has been shifted a few times while the plate is being developed.

c) Failed to cover the TLC chamber with a lid/watch glass while running the TLC plate.

d) A student is trying to determind a best solvent systme that would be seperate a three component mixture. After developing the plate, he couldn't detect any spots with the UV visualization. Mention two potential errors that could have goone wrong with his analysis.

Design a steam power plant that works as an ideal Regenerative Rankine cycle with 2 closed feedwater heaters cascaded backwards by selecting their extraction pressures to optimize cycle efficiency. The available steam conditions at the exit of the boiler are 3 MPa and 590 °C and the condenser pressure is 20 kPa. The steam flow rate at the inlet of the turbine is 80 kg/s. A T-s diagram for the cycle should be provided along with a table showing the pressure, temperature, enthalpy and entropy of all the states at the optimized point. Also, mention the net power output and rate of heat rejected from the cycle as well as the fractions of the working fluid extracted for each feedwater heaters at the design point.

Q2 Write short notes on any two of the following:

a) Optimum Design. b) New Design c) Empirical Design [12 marks]

(iii) Mention two methods used in design in minimizing stress concentration. [5 marks]

Q4 (i) Find the power transmitted by a 50mm diameter solid shaft running at 200rpm if the shear strength of the material is 124 MN/m2 using factor of safety of 2.

What will be the power transmitted by an equivalent hollow shaft of the same cross sectional area as the solid shaft above, if the ratio of the outside to inside diameter is 3/2. [18 marks]

(ii) Explain the meaning of the answers in (i) above

Construct a portfolio taking into account the macro-economic outlook for whatever country and currency you invest in . Your portfolio must reflect the following factors. Why you prefer managed funds or exchange-traded funds, or a mixture of the two. For this exercise you can choose funds - of any type, but funds (not bonds, not stocks -except via funds). Describe the funds. Include a mention of costs and why you like the funds. At least 5 -7funds altogether.

You also need to match your asset allocation with your risk profile. You may add a structured product to your portfolio.Reference-Portable Private Banker byDr David Costa

3. Mrs. Natasha gave birth to a boy child and her friend Mrs. Tina gave birth to a female child. When the babies are born, the environment is different both inside and outside of the body. Based on the above case answer your questions. (2.5 Marks)

a) How do the new born girl and boy babies are coping up with new environment?

b) What type of enzyme and neurotransmitters are involved with this process?

c) Is there any difference between these babies in coping up with the new environment? Comment on it.

d) Which type of tissue is involved in this process?

e) Mention the name of the gas which is involved in this process.

f) Write any two locations of this tissue.

Please help me Calculate fraction denatured and equilibrium constant at each temperature and plot ln K vs T-1 graph, once plotted Find ΔH, ΔS and ΔG(T=75) (mention any assumptions you made) and What is the Tm for each protein

Question 3: ( 150 words)
A. Carolyn manages a frozen pizza company. In order to earn profits, she must determine what activities
are required to achieve the company's objectives. Mention all activities this company would need to
do.

B. An electronic company has a computer electronics division, telecommunications equipment division,
and kitchen appliances division. Which of the following methods of departmentalization does the
company use to structure its organization?

***Please, adhere to the number of words, I want about 150 words, up to 200 words only. I would be grateful to you and give you "like "

Q4:B
The Business-to - Business (B2B)

For each of the following three transactions by a firm, calculate the effect on each of the following items: “Operating” Cash Flow, ΔNet Working Capital, Net Capital Spending, Cash Flow from Assets, Cash Flow to Creditors, and Cash Flow to Shareholders. If an item is completely unaffected by the transaction, you should not mention the item; however, if an item is affected in multiple ways that have a net effect of $0, you must report the $0. (1) The firm issues $2.3 million of new debt in exchange for cash. (2) The firm depreciates its long-term assets by $5 million. (3) The firm uses cash to pay off $77,000 of accounts payable.