Explain What is Organic Chemistry?

Kingsuk Karmakar

• Jul 13th, 2017

It is the branch or part of Chemistry in which we concern with the compound of carbon. Originally confined to compound to produced by living things.

ankit

• Apr 20th, 2017

Organic chemistry is branch of chemistry which deals with carbon compound

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vikas

• Jul 9th, 2017

Because distillation depends on volatility of component and toluene is a more volatile than water.

Pritam Jadhav

• May 4th, 2017

Because the boiling point of water is higher than toluene.
Thus toluene is more volatile liquid, therefore it comes out first.

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What is corrosion? Which is the most important material used for metallic coating?

rasika

• Jul 2nd, 2017

Corrosion is the destruction in the metal due to oxidation with atmospheric air
aluminium(Al) is material

Deepak Mishra

• Jun 8th, 2017

The most important material used for coating is Zinc (due to its sacrificial property)

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I have a liquid mixture in a bottle containing different synthetic substances dissolved from their salt forms (i.e. lidocaine hydrochloride, anhydrous caffeine). These compounds are dissolved in distilled water.
So the question is: How can I separate the dissolved solids from the aqueous solution? Can I do it by forming a hydrochloride precipitate by adding some hydrochloric acid? Or, say the...

Nilesh

• Jun 29th, 2017

In case of solids the lighter solids can be separated by decanting it in water medium when both of the solids are ... Distillation can also be used to separate dissolved salts from their aqueous solutions.

rockky

• Apr 27th, 2017

By evaporation and distillation process. Through many evaporator series to find the Liqueur or product that you need

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What are cocurrent and countercurrent of fluid streams?

Parth joshi

• May 30th, 2017

In cocourrent stream both of fluid flow in the same direction and in counter current stream both of fluid are flowing in opposite direction.

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The Carnot co-efficient of performance (COP) of a domestic air conditioner compared to a household refrigerator is, less or more? Can any one help me out with an explanation...

Nandita Baral

• Mar 20th, 2017

The COP of a Refrigerator/AC would be given by expression: COP = (Cooling Effect/Power Input). The cooling effect produced by a refrigerator is obviously more for a refrigerator. At the same time th...

sunny vanza

• Feb 21st, 2016

It is less.

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We all know Solar cells lifetime is about 20+yrs. How can we be able to decompose the dead solar cells? Is it fully bio-degradable?

What is the important properties of biodegradable plastics?
Which properties helps plastics to resist water?

VIVEK32043

 Profile Answers by VIVEK32043 Questions by VIVEK32043

• Jan 25th, 2017

Biodegradable polymers are those which are decomposed after their useful service life to end products like minerals, oxygen, etc. with the help of micro organisms under normal environmental conditions.

Khalid Ibrahim Jamadar

• May 24th, 2016

Biodegradable polymers, have extremely strong carbon backbones that are difficult to break, such that degradation often starts from the end-groups. Since the degradation begins at the end, a high surf...

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Why storage tank maximum height is 20m? Where else one can vary diameter of it, yes or no!

pravin javheri

• Oct 24th, 2016

Wind load can be assumed to be negligible upto 20m height. So, to avoid stresses (due to wind) to develop in the tank, maximum height is 20m. Increment in the diameter needs to consider some other factors like types of supports used, actual height, etc..

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What is difference between micro-organisms & micro pollutants?

omenli collins

• Oct 13th, 2016

Micro-organism exists internally and can be destroyed at high temperature. It performs multiple functions, it can cause harmful diseases but can also help to enrich the soil. It is a living thing. M...

Khalid I Jamadar

• Jun 1st, 2016

A microorganism or microbe is an organism which is too small to be seen by the unaided human eye. They are microscopic. The study of microorganisms is called microbiology. Microorganisms include bacteria, fungi, archaea or protists and viruses.

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When Standard Hydrogen Electrode is compared with Cu it is first cell and when Standard Hydrogen Electrode is compared with Fe. in first cell which will act as anode or cathode and in 2nd cell which will act as anode or cathode and why?

nani

• Jun 25th, 2016

First Cu and Zn are called half cells in Daniel cell.
SHE is the measurement of electrode potential we cant directly measure EP. For that we fix one half cell hydrogen anode and other may be Fe Cu Is cathode are in vice versa.

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What is the effect of pressure in the Distillation Operation? It is also said that when the vapor pressure of the liquid component equals the atmospheric pressure, boiling occurs; can anyone give me an example for this type of Distillation?Thank you

Sina Salimi

• May 30th, 2016

Increasing pressure makes separation harder, because it decreases relative volatility

rohit

• Sep 3rd, 2011

If we increase the pressure, the no. of stages in a distillation column becomes less as the liquid boils earlier (boiling occurs when the atmospheric pressure becomes equal to the vapour pressure of the liquid.)

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When standard hydrogen electrode is compared with Cu and Fe respectively which will act as anode and which will be cathode? and Why?

Nkosenhle

• May 21st, 2016

Cu will be a cathode and Fe will be an anode, because electrons move from Cu through the salt bridge to Fe

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What are green gases? Does water release green gas? How green gas effects on temperature? How is plaster of Paris made? Is combustion is a Unit Operation or Unit Process or nothing?

ashwin

• Dec 7th, 2015

Gas in an atmosphere that absorbs and emits radiation within the thermal infrared range is greenhouse gas like methane, CO2 etc... Yes, water releases green gas, water vapor is most dominant green ga...

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Why there is coating in cement mill fan and separator ?

ashwin

• Dec 7th, 2015

Because particles adhere to fan due to static electricity so usually acoustic sounding horn is attached to fan casing coating too helps

shabhar

• Dec 4th, 2015

May be to prevent corrosion or to prevent the chemicals to react with the metals.

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How can we calculate heating of natural gas?

amit kumar panigrahi

• Sep 5th, 2015

We are using gas chromatogrpahy for calculating the carorific value of a combution gas

Nihar

• Sep 3rd, 2015

By thermocouple, pyrometer, We can measure and calculate the heat of Natural gas..?

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In the American Engineering system of units, the viscosity can have units of (lbf)(hr)/ft^2, while in the SI system, the units are (g)/(cm)(s). Convert a viscosity of 20.0 (g)/(m)(s) to the given American Engineering units?

paul ericson

• Jul 22nd, 2015

1g/cm.s = 0.002 lbf.s/ft^2
so, 1g/m.s = 100g/cm.s
so, 20g/ms=2000g/cm.s
now,
2000*0.002= 4lbf.s/ft^2
to convert into lbf.hr/ft^2,. 1 sec =0.00027 hr. so multiply by 0.00027
so, 4*0.00027=0.00108 lbf.hr/ft^2.

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As we know steel making is done in a furnace at very high temperatures, but how is that temperature maintained in a furnace on continuous basis ??

paul ericson

• Jul 22nd, 2015

We can control the fuel rate to the furnace.for this we can use air-ratio control system where your process instrumentation control comes in to play. refer( air ratio control system)

Nihar

• Jun 2nd, 2015

It is maintained by flow rate of natural gas or any fuel that is used for furnace... and this high temp is measured by thermocouple and from thermocouple we change the rate..

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Hi
please i need some help here
i want to ask a few questions about pressure purge method used for inert a vessel:
1-Does The Material/ Gas inside the vessel affect the purge technique ?
2-What about an inlet natural gas filter ( with elements ), does the element affects the purge ?
3- why in some books when implement the equation to calculate number of purge cycle-...

Josh

• Mar 18th, 2015

Typically getting below 2% oxygen is standard for preventing explosive conditions depending on the process (O2 sensitive catalyst, O2 impurity intolerable). ?Three pressure ups to 50 psi with N2 and dumps or two pressure ups to 100 psi and dumps are typically performed.?

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shah siddharth j

• Feb 24th, 2015

Pseudo pressure is the mathematical expresion accounts for variable compressibility and viscosity of gas with respect to pressure

suji

 Profile Answers by suji Questions by suji

• Mar 19th, 2012

In regard to pressure the mathematical pressure function for the variable viscosity and compressibility of gas is Pseudo-pressure or real gas potential. Its the changes that occur in gas properties with pressure.

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