Answer / kangchuentat

ENGINEERING NUMERICAL METHODS - ANSWER 19.2 : By using Excel program, L / V = 0.654. The data of x are : 0.31 for B, 0.41 for T, 0.28 for X. You may bring your own calculator on laptop or phone with Excel program to assist the trial and error. 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.

i need formula for calculating discharge of river, the data i have is variation of water pressure, variation of air pressure,depth of water and length of river. please i need help

1 Answers  

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i have done B.TECH in che.tech.and doing MBA . why you doing mba why u have not join any job.

0 Answers   IBM,

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What is the basic difference between dispersion & distribution in any polymer blend or alloy??

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hai....i am chandrika. if anybody having test questions for HAL,HPCL,ONGC,IOL...PLS SEND THE QUES WITH SOLVED ANSWERS TO ME TO MY MAIL ID chandrismiles@yahoo.co.uk

0 Answers   HAL,

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What significance the angle of repose holds in the chemical industry, explain?

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Question 47 - In a cylinder with a hollow, let a is outside radius and b is the inside radius. In a steady state temperature distribution with no heat generation, the differential equation is (d / dr) (r dT / dr) = 0 where r is for radius and T is for temperature. (a) Integrate the heat equation above into T(r) in term of r. (b) At r = a, T = c; at r = b, T = d. Find the heat equation of T(r) in term of r, a, b, c, d.

1 Answers  

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Hi, I am in need of interview questions from Engineers india limited in chemical engineering.if any one has kindly post it to me soon.

0 Answers   Halliburton, IOCL,

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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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what is fund flow definition

1 Answers   Amara Raja,

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what is petrol density ? why ?

3 Answers   Reliance,

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REACTION ENGINEERING - EXAMPLE 13.3 : The half-life for first order reaction could be described in the differential equation dC / dt = -kC where k is a constant, C is concentration and t is time. (a) Find the equation of C as a function of t. (b) Find the half life for such reaction or the time required to reduce 50 % of the initial concentration, where k = 0.139 per minute. (c) When the initial concentration Co is 16 mol / cubic metre, how long does the reaction required to achieve the final concentration of 1 mol / cubic metre?

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REACTION ENGINEERING - EXAMPLE 13.2 : 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.

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