Posts

Weber Number & its physical significance / Dimensionless Number / Chemical Engineering

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This video contains a brief explanation of the Weber Number and its physical significance. It is an important dimensionless number in gas-liquid or liquid-liquid systems.  

Steady-state molecular diffusion illustration (GATE 2016)

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In this video, I am going to solve a numerical comparing two different cases of steady-state molecular diffusion which I had taken from the chemical engineering GATE paper of the year 2016. Consider the following two cases for a binary mixture of ideal gases P & Q under steady state conditions. In case 1, the diffusion of P occurs by equimolal counters diffusion of Q. In case 2, the diffusion of P occurs through non diffusing Q. In both the cases, the total pressure is 500 kPa and the partial pressure of P at two points separated by a distance of 0.1 mm are 50 kPa and 25 kPa. Assume that the Fick's first law of diffusion is applicable. What is the ratio of molar flux of P in case 1 to that in case 2 ?  

Lec : 03 : Chemical Engineering Process Calculation : Basic Chemical Principles

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Hello friends. In this post we are going to learn some basic chemical principles before dealing with chemical process calculations.  

Chemical Engineering : Mass Transfer : Absorption Equipment : Packed Column

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This post will introduce you about the construction and operation of packed towers which are used for an intimate contact between the gas and the liquid in absorption phenomena.  

Absorption equipment: Plate Column

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This post will introduce you about the construction and operation of plate towers used for an intimate contact between the gas and the liquid in absorption phenomena. In plate towers, the gas is dispersed in the liquid in the form of bubbles.  

NUSSELT NUMBER & its significance / Dimensionless Number / Chemical Engineering / Heat Transfer

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This post contains a brief explanation of the Nusselt Number and its significance. It is an important dimensionless number in heat transfer.