Answer / kangchuentat

Answer 110 - Let [p,x] f(x) = px f(x) - xp f(x) = (-ih d / dx) x f(x) - x (-ih d / dx) f(x) = -ih { d / dx [ x f(x) ] - x d f(x) / dx } = -ih [ f(x) ] + x d f(x) / dx - x d f(x) / dx = -ih [ f(x) ]. Then [p,x] = -ih. 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.

What is control valve ?

2 Answers   TCL,

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CHEMICAL MATERIAL BALANCE - EXAMPLE 2.4 : A mixture consists of benzene (B), toluene (T) and xylene (X). At a temperature of 353 K, the data of vapor pressures : B : 754.12, T : 289.71, X : 91.19. Unit is mm Hg. The pressure P is 0.5 atm. The value of k for each substance is k = (vapor pressure) / P. (a) Calculate k for B, T and X. Let L / V = 0.65. (b) By using the equation V = F / [ (L / V) + 1 ], find the value of V when F = 100, then what is the value of L?

1 Answers  

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For a centrifugal pump if the pump is running and we close the discharge valve what is the effect

11 Answers   Asian Paints, NFTDC, Reliance,

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how much time will take 20000 liter water to cool from 80-30 0C ? Assume all parameters constant

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What is the reason for removing silicon from aluminum?

3 Answers   IOCL, ONGC,

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What are the specialized grinding methods?

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which type of packing gives large interfacial area stacked or random?

2 Answers   NPCIL,

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Explain the significance of the angle of repose holds in the chemical industry?

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What is the ignition temperance of Diesel,Petrol&kerosion oil

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What is the maximum recommended velocity for steam in a plant pipe network?

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Can asphalt be recycled to form a useful product?

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If sum one has HAL placement paper plz mail me ,I m Chemical Engg.my id is er.kotnala@gmail.com

0 Answers   HAL,

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