how to reduce COD from plant waste water closed circulation system

1 Answers  

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What do you know about us?

4 Answers   Allfon, Bhushan Power Steel, CPCL, Crystol, Trident,

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Whether long question or short question I can expect in the interview at IOCL ?

0 Answers   IOCL,

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what is the role of a chemical engineer on a cement plant?

4 Answers  

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why we messure differential pressure in pascle,mmhg,mmwc like different units in different companys?

1 Answers  

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Why Packed Bed is not preffered in seperation process while Tray column is used in Industries predominatly??

5 Answers  

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how much maximum power can be generated by 320v, 10kg-cm synchronus motor if shaft is roteted mechanically at 50 to 60 rpm?

0 Answers  

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Explain what types of metals are typically removed via chemical precipitation?

0 Answers  

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POLYMER ENGINEERING - QUESTION 24.3 : The molecular weights M in kg / mol of 3 different monomers a, b and c in a polymer are Ma = 14, Mb = 16 and Mc = 18, with their respective quantities in N units having the ratio of Na : Nb : Nc = 2 : 3 : 5. (a) Find the numerical average molecular weight of the polymer by using the formula (Ma Na + Mb Nb + Mc Nc) / (Na + Nb + Nc). (b) Find the weighted average molecular weight of the polymer by using the formula (Ma Na Ma + Mb Nb Mb + Mc Nc Mc) / (Ma Na + Mb Nb + Mc Nc). (c) Calculate the polydispersity Q by using the answer in (b) divided by answer in (a). (d) Find the volumetric average molecular weight of the polymer by using the formula (Ma Na Ma Ma + Mb Nb Mb Mb + Mc Nc Mc Mc) / (Ma Na Ma + Mb Nb Mb + Mc Nc Mc). (e) Estimate the polydispersity Q by using the answer in (d) divided by answer in (b).

1 Answers  

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What is formula for petrol?

3 Answers   Reddy Labs,

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What regulates, or gives a substance the viscosity it has?

3 Answers  

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In case of welded vessels why is stress relieving in the form of post-weld treatment necessary?

0 Answers  

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