Define a surfactant?

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QUANTUM CHEMISTRY AND CHEMICAL ENGINEERING - EXAMPLE 31.1 : As an approximation, let v = Zc / 137 where v is the radial velocity for 1 s electron of an element, c is the speed of light, Z is the atomic number. For gold with Z = 79, find the radial velocity of its 1 s electron, in term of c and percentage of the speed of light. (b) As an approximation, let A x A = 1 - Z x Z / 18769 where A is the ratio of the relativistic and non-relativistic Bohr radius. Find the value of A.

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what is mean by reflux ratio?

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What is the purpose of capacitor? What does capacitor load means? How does it connect?

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why back washing is performed in DM water plant?

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In differential centrifugation of cells with diameter D in centimeter, the square of D is given by D x D = [18n ln (RF / RI) ] / [ (RP – RFF) Wt ] where n is the fluid viscosity (poise), RF is the final radius of rotation (cm), RI is the initial radius of rotation (cm), RP is cell density (g/ml), RFF is the fluid density (g/ml), W the square for the rotational velocity in (radians / s) (radians / s), t is the time required to sediment from RI to RF (s). Derive an equation for W as a function for D, n, RF, RI, RP, RFF and t, with the stated units above, in radian

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white rust formation over zinc plated and yellow passivated fasteners during CED painting. WHY?

0 Answers   Wheels India,

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How much steam required for 1MW power production form 30 bar G super heated steam(350 C), outlet of turbine 4.5 bar

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In case of welded vessels why is stress relieving in the form of post-weld treatment necessary?

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what is the difference between distillation column and distillation tower?

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How can you control the ph level in our cooling water with respect to ammonia contamination?

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Why LMTD is calculated in Heat -Exchanger problems..Why dont we take average temperature??

4 Answers   Aker Solutions,

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