Answer / youga

Fouling factors provide a numerical value, reflecting the resistance to moving heat between fluid mediums. Typically, heat exchanger designers compensate for high fouling factors by increasing the exchanger's surface area. Although fouling will still occur, there is more surface area for functional heat exchanges, continuing adequate operations

How can separation of chiral chemicals affect the chemical and/or pharmaceutical industries?

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how much height hight work permit requred

2 Answers   Atul, BARC,

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How do you design a vapor-liquid separator or a flash drum?

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What are the uses of quicklime?

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diffirance between heat transfer & thermodynamics

3 Answers   Shinsung Petrochemicals,

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Can anyone tell me how to calculate the quantity of a third component added in an azeotropic batch distillation of a known quantity of azeotropic mixture?

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Why chemical became dominant to natural sources????

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hello sir..iam keen to sit for iocl interview..please forward sample iocl questions to my id: kunal_kv06@yahoo.co.in

0 Answers   IOCL,

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Explain the factors involved in designing kettle type reboiler?

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what is difference between precipitation and crystalisation

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Question 68 – Biochemical Oxygen Demand (BOD) could be calculated using the formula BOD = (DOi - DOf) (Vb / Vs) where Vb = Volume of bottle in ml, Vs = Volume of sample in ml, DOi = Initial dissolved oxygen in mg / L, DOf = Final dissolved oxygen in mg / L. (a) By using a bottle of Vb = 300 ml with sample Vs = 30 ml, find the BOD if DOi = 8.8 mg / L and DOf = 5.9 mg / L. (b) By using a bottle Vb = 600 mL with sample Vs = 100 mL, find the BOD if DOi = 8.8 mg / L and DOf = 4.2 mg / L. (c) Find the average BOD = [ Answer of (a) Answer of (b) ] / 2. (d) If the BOD-5 test for (a) - (c) is run on a secondary effluent using a nitrification inhibitor, find the nitrogenous BOD (NBOD) = TBOD - CBOD. Let TBOD = 45 mg / L and CBOD = Answer of (c).

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After conducting an internet search for ways to reduce energy costs, I found a recipe for whitewashing that is said to reflect sunlight. The recipe calls for 20 pounds hydrated lime to 5 gallons water to 1-quart polyvinyl acetate. What is a good source of polyvinyl acetate that I can buy at a local store?

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