Chemical Engineering

you take pipes from the fire to the chest and melt ice over it the cold water will keep it cooled down dawg. Fo Sheezy. you take pipes from the fire to the chest and melt ice over it the cold water will keep it cooled down dawg. Fo Sheezy.

When a cold object and a hot object are in direct contact (touching) heat will be transferred through thermal conduction.

Normally, heat transfer processes are categorized as thermal conduction, radiative transfer or convection.

Heat transfer through thermal conduction is the direct transfer of kinetic energy from one molecule to the nearby molecules. Because temperature is directly proportional to kinetic energy, interactions between neighboring particles exchange energy and that exchange energy gradually works it way from the higher temperature regions to the lower temperature regions. The process of the temperature becoming the same is called thermal equilibration.

Convective heat transfer occurs in fluids. If a gas, liquid, or other fluid, changes in fluid density change the buoyancy and will cause fluid to flow (a process called convection) and the heat contained in the warmer fluid is transferred to a new location by the physical movement of the fluid.

Radiative transfer occurs when a hot object radiates electromagnetic energy. While the sun is an obvious source of electromagnetic energy, it is also generated in smaller amounts by any object. The hotter objects radiate more electromagnetic energy and the cooler objects absorb it. This radiative transfer is important but not as noticeable usually as the other two. It does occur between objects whether they are in direct contact or not, but is usually so small as not to be important of the objects are touching.

HYDROGEN & He cant be liuefied because their atomic Masses are small .

second reason is that intramolecular forces are not present in helium and they cannot form covalentbond London forces are weak then inter molecular forces so less energy is required to overcome these forces and gas cannot be cooled.

The preparation of uranium from ores is a long chain of chemical and physical processes.

Kevlar is a synthetic fiber with an extremely high tensile strength. It was created in 1971 by DuPont Chemical group.

78%

The year when the average cost of a barrel of crude oil was $38.00 was 2004. That year, the average price per barrel was $37.66. The average cost for a gallon of regular gasoline in 2004 was: $1.88 per gallon.

Too many places to name, but depends on your specialization. Possible work places are: - Pharmaceuticals - Polymer processing - Gas/oil industry - Nuclear plants - Etc., etc., etc. Chemical engineering is a very broad field with several specializations fitting to many a variety of work places.

Silt

Free-flowing means that something can flow without hindrance. A example of this is a river that exists without being blocked or impeded by a dam. A dam would resist the flow of a river, causing water to remain in or accumulate in a given region, which would not be a free-flowing scenario.

Alkaline hydrolysis is the use of alkali chemical to break down complex molecules (specifically, tissues) into their basic building blocks. Tissue digestion by alkaline hydrolysis is commonly used to dispose of laboratory or veterinary carcasses. It often includes the use of temperature or high pressure, or both. If you put three cows into a tissue digester with alkali (NaOH or KOH, for example), after 20 hours or so you are left with a fluid consisting of amino acids, small peptides, sugars, nutrients, soap, and possibly some minor bone residues. Infectious disease is emiminated, and it is very likely that prions are destroyed as well. If KOH is used in digestion, then in it can be spread as a manure-like fertilizer (in some states which have approved this method). This technology has just recently become affordable, and I imagine you'll be seeing them in farms, co-ops, and meat-packing plants soon, as opposed to major-operation laboratories and veterinary hospitals. Very cool for our struggling environment! Hope this helps! Information on the specifics: http://www.animallab.com/articles.asp?pid=76 Here is the producer of the affordable model: www.BioResponseSolutions.com

Yes, milk can be synthesized artificially using technologies like cell culture and fermentation. These methods involve using cells to produce proteins and fats that mimic those found in natural milk. Synthetic milk offers a sustainable and animal-friendly alternative to traditional dairy products.

A unit operation involves a physical change examples drying, size reduction, distillation, filtration etc.

where as unit process involves a chemical change or sometime it refered as chemical changes along with physical change example production of paracetamol from benzene.

It is a very good question. I am pretty sure it is about 10 grams.

This is possible because one millimeter is the same as one gram. Hence I figured that since one centimeter in ten millimeters I thought that you should times it by ten. So the answer should be ten.

Q.Write the kind of change against the following?

1. tearing of paper

2.rottening of eggs

3.Melting of wax

4.Burning of wax candle

5.Rusting of iron

6.curdling of milk

7.Growth in a child

8.Dissolving salt in water

9.Lightining of match stick

10.Heating a piece of iron wire to redhot.

Lihting of an electric heater

Chemical engineering thermodynamics helps a chemical engineer to assess vapour-liquid equilibria of various materials. It helps chemical engineer to evaluate thermodynamic properties and how much heat is evaluated by a particular reaction in a reactor. A chemical engineer will also benefit to operate cryogenic and ultra-low temperature processes by utilizing his skill-set of che engg thermodynamics. It is also helpful if any propulsion mechanism is encountered in any process. The data collected for various parameters such as temperature,pressure, humidity, fugacity, enthalpy etc will help to assign stability and reaction operating conditions as and when required.

The question assumes that chemicals ARE bad. Chemicals are neither inherently good or bad. They just exist. Your body is made up of chemicals. The air you breath is made up of chemicals. The sun is made up of chemicals. Food is made up of chemicals. Poisons are chemicals. Medicines are chemicals.... All matter is "chemicals". Because the industrial production of chemicals can be accompanied by the production of deleterious byproducts, many people associate the term "chemical" with the bad byproducts. Some products are themselves hazardous, but very useful - like gasoline for example. Companies and countries that responsibly address those risks make life better. Companies and countries that ignore the hazards of chemical manufacturing can make life much worse. It comes down to what you do with what you have.

chlorine atoms have high electronegativity, which will distort the electron cloud of the molecule.

DCM is highly polar, and it is also an organic molecule.

thus it is a good solvent for other organic molecules, very often used in non-biological organic synthesis.

A phase change.

A phase change is a physical change that occurs when an object changes from one state to another i.e. liquid to gas, gas to liquid, liquid to solid, solid to liquid. A substance need not go through the liquid phase to change from a solid to a gas, as in sublimation of dry ice (solid carbon dioxide).