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Chemical Engineering

Chemical Engineering is the branch of engineering that deals with the technology of large-scale chemical production and the manufacture of products through chemical processes. Today, the field of chemical engineering is a diverse one, covering areas from biotechnology and nanotechnology to mineral processing.

1,464 Questions

What is equlivent to sae 90 gear oil?

Viscocity should be 90. Other contents should not harm - gears

What is catacarb process?

cat-a-carb{catalized actvated carbonate} is the process to remove acidic gases like co2 or so2 in a gas or mixture of gases.

Why most of the heat exchangers are made use of forced convection?

Better heat transfer than natural convection. When compared to water or liquid cooled heat exchangers, the argument could be made that air is a cheaper cooling medium.

Is Br reactive?

Oh yeah. So reactive, in fact, that bromine rarely exists by itself in nature; only locked up in a compound. Bromine is a halogen, group 17, and those are the most reactive of all the non-metals.

How do you test for diesel purity?

Mix Acitic acid 5ml & aniline 2ml, dissolve this solution in 15ml of Diesel, shake well, after 3 minutes 2 to 3 drops of Golden yellow colour will formed at bottom of test tube ...if it so means the Diesel is pure

How do you test free chlorine in a cooling tower?

There are test kit available in the market to check chlorine concentration in ppm levels. It also had real-time analyser for the chlorine in the market.

You may want to search for DPD Colorimetric Method for the titration mechanism of chlorine.

How do you develop transfer function of second order?

You can develop transfer function of second order in various ways. The use of a pictorial approach to system modelling is one of the suitable options to use.

What is the purpose of mixing rice with table salt in the absent of water?

when u mix the rice with salt it help the rice expand faster and to get cooked faster

Mixed potential theory?

is a theory used in electrochemistry that relates the potentials and currents from differing constituents to come up with a 'weighted' potential at zero net current. In other words, it is an electrode potential resulting from a simultaneous action of more than a single redox couple, while the net electrode current is zero.

What are Molotov cocktails made of?

Petrol / gasoline in a bottle with a wick. The wick is usually a piece of cloth or some other absorbent material. Often there is a flint (as in a lighter flint) attached to the bottle so the wick can be ignited easily.

The beauty of the Molotov cocktail is its cheapness (even cheaper than the $10 RPG) and the fact that burning liquids can penetrate into even tanks.

Calculate the standard emf of a cell that uses the Mg Mg2 plus and Cu Cu2 plus half cell reactions at 25 degrees C?

Cu + Mg2 --------> Cu2 + Mg

Cu --------------> Cu2 + 2e

Mg2 + 2e --------> Mg

Cu --------------> Cu2 + 2e (E = +0.35)

Mg2 + 2e --------> Mg (E = -2.36V)

+0.35 + (-2.36) = -2.01V

--------------------------------------…

Mg + Cu2 --------> Mg2 + Cu

Mg --------------> Mg2 + 2e

Cu2 + 2e --------> Cu

Mg --------------> Mg2 + 2e (E = +2.36V)

Cu2 + 2e --------> Mg (E = -0.35V)

+2.36 + (-0.35) = +2.01V

Empirical equations used in a turbulent flow system?

there are many empirical constellations in turbulent flow depending upon the conditions like whether flow is internal or external, flow over a flat plate of pipe etc. so its better to refer a book on fluid mechanics.

Why BOD is measured after 5 days?

because our teacher(Dr. tauseef Ahmad Qureshi (YaKa) told us he is a great personality he cant be wrong

YaKa = young and knowledge Authority

How do you get neon the element?

Neoon is obtained from atmospheric air by distillation at low temperature.

How do you locate feed tray in distillation?

In order to locate the feed tray in distillation, you need to calculate the field tray by using MCcabe Thiele field method. For more complex systems you need to use process simulators and perform a sensitivity analysis to determine the optimum feed tray.

Briefly tell us about yourself Personality?

hi this is subhash chandra prajapati, born and brought up in delhi only. i have two siblings, both are younger than me. my mom is a complete housewife and dad has small business. I am graduate from delhi university in b.com in 2008. i have over three years of experience in medical transcription.

How does etching reveal the crystal structure of metal?

Cristal are fundamentally anisotropic. They are geometrically organized in planes that are denser than other direction. When acid etch a crystal, it began where it's easier, by the planes directions where the atoms are the most distant from each other. This process highlight's the crystal planes.

What is an SSD?

An SSD (Solid State Drive) is a type of hard drive that uses no moving parts, but rather stores data on Flash chips, similar to a Flash drive or CompactFlash.
Solid State Drive

What could cause Jet Fuel A MSEP ratings to degrade as the fuel passes through a pipeline system?

Contamination with a fuel containing surfactants could cause the MSEP rating to degrade as it passes through a pipeline. See also the links below.

How do you lubricate a rubber or silicone piston sliding inside a cylindrical transparent acryl pipe the piston has an outer diameter of 3mm and the pipe has an inner diameter of 3mm for air pressu?

I would use water based lubricant like the one used with condoms.

Easy to find, environmental friendly, put apart the obvious sex use, otherwise its the best known substance to lubricate rubber and other synthetic materials.