Answer / kangchuentat

ENGINEERING PHYSICS - ANSWER 30.2 : (a) Let first equation : E = hc / L, second equation : L = h / p. Substitute the second equation into first equation will produce E = hc / L = hc / (h / p) = pc. (b) E = hf then h = E / f. Dimensional analysis of h will produce E / f of electron-volt / (1 / second) or electron-volt-second. The answer is given by Kang Chuen Tat; PO Box 6263, Dandenong, Victoria VIC 3175, Australia; SMS +61405421706; chuentat@hotmail.com; http://kangchuentat.wordpress.com.

In DM plant, If pH in anion outlet is 7.2 and Mixed bed pH is 6.2, wat could be the reason.

8 Answers   Cipla, Jindal,

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My previous company dismissed from my job due to some reason. But they have given 1 year experience certification. But i worked for 1 year 4 months, How do i answer if interviewer asked what did you do for six months.why are you leaving your job?

4 Answers  

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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?

0 Answers  

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can you explain about the design calculations and procedure of boiler

0 Answers   Reliance,

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Explain some good strategies for curing tube vibration in shell and tube exchangers?

0 Answers  

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Is it ever advantageous to use shells in series even though it may not be necessary?

0 Answers  

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can anyone send me the written test paper of Indian oil corporation ltd. My email id is pratuljakhmola@yahoo.com

0 Answers  

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What is a good estimate for the absolute roughness for epoxy lined carbon steel pipe?

0 Answers  

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what is the symbol of sodiumj

2 Answers   HCL,

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Question 69 - A well delivers 225 US-gallons per minute of water to a chemical plant during normal system operation. (a) Calculate its flowrate in the unit of mega US-gallon per day or MGD. (b) The following formula is written next to the chlorine feed point : (chlorine feed rate, lb / day) = (flowrate, MGD) X (dose, mg / L) x (8.34). If this formula is correct, then what should the chlorine feed rate to be in pounds per day (lb / day) if the desired dose is 2 mg / L. (c) Prove by calculations that the constant 8.34 in the formula next to the chlorine feed point is correct. Let 1 US-gallon = 3.78541 L and 1 mg = 0.0000022046 pound.

1 Answers  

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Question 51 - A batch reactor is designed for the system of the irreversible, elementary liquid-phase hydration of butylene oxide that produces butylene glycol. At the reaction temperature T = 323 K, the reaction rate constant is k = 0.00083 L / (mol - min). The initial concentration of butylene oxide is 0.25 mol / L = Ca. The reaction is conducted using water as the solvent, so that water is in large excess. (a) Let the molecular weight of water is 18 g / mol and the mass of 1 kg in 1 L of water, calculate the molar density of water, Cb in the unit of mol / L. (b) Determine the final conversion, X of butylene oxide in the batch reactor after t = 45 min of reaction time. Use the formula X = 1 - 1 / exp [ kt (Cb) ] derived from material balance. (c) Find the equation of t as a function of X.

1 Answers  

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name of the fraction at which benzene xylene and toulene is obtained during coal tar distillation

3 Answers   IFFCO,

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