What is the difference between conversion and enrichment ?

1 Answer

Answer :

The process of converting the non fissile U 38 to fissile U-35 is also called “Conversion”. The material like
U 38 which can be converted to a fissile material by the neutron flux is called “fertile material”. The
conversion is obtained within the nuclear reactor during the chain reaction.
Enrichment is the process by which the proportion of fissile uranium isotope (U-35) is increased above
0.7% (original % in natural uranium).
The concentration of U-35 in the uranium hexafluoride is increased from the 0.7% in natural uranium to
to 4%. This is called enrichment and is accomplished in an enrichment plant.

Related questions

Description : Can you have genuine representative government in a land where a route to self enrichment lies through a "successful" political career.

Last Answer : A genuine representative government is the real American dream which if it isn't realised as intended will become the American nightmare. You are ruled by an aristocracy of billionaires and if you are ... has become a disgrace. This goes beyond party politics which is itself part of the problem.

Description : How do I find personal enrichment classes in my community?

Last Answer : I would go directly to the studio whether it be art,yoga,or self defense.Do the art classes,you know it’s the most fun! :)

Description : CFC a byproduct in uranium enrichment process?

Last Answer : I can't give you a direct quote about chlorine, fluorine and carbon, as I haven't taken this stuff in about 3 years. BUT, Nuclear plants aren't really 100% clean. They are better obviously than coal or gas ... any entry level college chem book .. I sold mine long ago or I'd look it up for ya).

Description : What is ‘enrichment plantation’? -Geography

Last Answer : Enrichment plantation” was carried out during the colonial period in India. When a particular species of trees which are commercially profitable are planted after the removal of other ... down natural forests Chirr Pine plantations which have replaced the Himalayan oak in the Himalayas

Description : Nutrient enrichment of water bodies causes

Last Answer : Nutrient enrichment of water bodies causes A. Stratification B. Eutrophication C. Succession D. None of the above

Description : Enrichment of uranium is made by :

Last Answer : Enrichment of uranium is made by : A. distillation B. diffusion C. evaporation D. bleaching

Description : The method used for the enrichment of sulphide ores of copper is

Last Answer : The method used for the enrichment of sulphide ores of copper is A. Mangetic Separation B. Froth floatation process C. Electro refining D. Smelting

Description : What factors job rotation job enlargement and job enrichment does Frederick Herzberg say motivate employees the most?

Last Answer : Need answer

Description : How might an enrichment culture be used to isolate bacteria capable of degrading pesticides and other hazardous wastes?

Last Answer : Feel Free to Answer

Description : Enrichment of uranium is done to increase the concentration of__________ in the natural uranium. (A) U-238 (B) U-233 (C) U-235 (D) Pu-239

Last Answer : (C) U-235

Description : In the gaseous diffusion process of uranium enrichment, the natural uranium is converted into gaseous (A) Uranium oxide (B) Uranium hexafluoride (C) Uranium carbide (D) Uranium sulphate

Last Answer : (B) Uranium hexafluoride

Description : What is Job enrichment?

Last Answer : Making the jobs more interesting and challenging one is known as job enrichment. It is used to motivate and satisfy the workforces in the work place.

Description : Write briefly (a)Allotropy (b) Nebula (c) Enrichment of Uranium (d) Aqua Regia (e) Greenhouse effect (f) Igneous rocks

Last Answer : (a)Allotropy existence of a chemical element in two or more different forms For example, the element carbon has two common allotropes: diamond, where the carbon atoms are bonded together in a ... igneous rocks have been described, most of them formed beneath the surface of the Earth's crust.

Description : Write briefly about any five of the following a. Nuclear radiation b. Theodolite c. Dialysis d. Enrichment of Uranium e. Richter Scale f. Aqua regia g. Iodized salt

Last Answer : a. Nuclear radiation Three are atomic nuclei of some elements that continuously emit some ultraviolet waves called radiation. When the process of radiation is stimulated through various nuclear processes ... , and at approximately the same level throughout the year, irrespective of economic level.

Description : A distillation column with N plates is being operated under normal conditions. At some point of time, the operation is shifted to total reflux condition (i.e., no product and residue are ... and without total reflux (D) The top and bottom compositions correspond to the maximum enrichment available

Last Answer : (D) The top and bottom compositions correspond to the maximum enrichment available

Description : The principle of enrichment of uranium is

Last Answer : Graham’s law of diffusion.

Description : How is the Graham’s law of diffusion useful in the enrichment of Uranium? Explain.

Last Answer : Graham’s law states that the rate of diffusion of a gas is inversely proportional to the square root of its molecular mass. This principle is used to separate by passing gaseous uranium through several stages of semi-permeable membrane.

Description : What is the need for enrichment of uranium?

Last Answer : Naturally occurring uranium contains about 0.7% of 92 U 235 isotope which is fissionable. Self stained chain reaction are not possible in natural uranium which is not possible in natural uranium which is mostly made up of isotope 92 U 238

Description : What is meant by enrichment of uranium?

Last Answer : The process of separating92 U235and 92 U 238isotopes is called enrichment of uranium.

Description : Oxygen enrichment of combustion air does not result in increase of the (A) Flame temperature (B) Oxygen in the flue gas (C) Stack loss (D) Heat transfer rate in the furnace

Last Answer : (B) Oxygen in the flue gas

Description : Higher furnace temperature cannot be achieved by use of a lean fuel gas in the furnace by (A) Increasing the draft in the furnace (B) Preheating the fuel gas (C) Oxygen enrichment of combustion air (D) Preheating the combustion air

Last Answer : (A) Increasing the draft in the furnace

Description : Temperature of a furnace fired with low calorific value fuel gas (i.e. lean gas) can be increased by (A) Preheating the combustion air (B) Oxygen enrichment of combustion air (C) Preheating the fuel gas (D) All (A), (B) & (C)

Last Answer : (D) All (A), (B) & (C)

Description : Stack heat losses can be minimised by (A) Controlling the excess air (B) Oxygen enrichment of combustion air (C) Using low c.v. fuels (D) Maintaining proper draft in the furnace

Last Answer : (A) Controlling the excess air

Description : Eutrophication is the process of enrichment of surface water bodies with — a. Minerals b. Nutrients c. Salts d. Vegetation

Last Answer : b. Nutrients

Description : The medium which allows the growth of more than one microorganisms of interest but with morphologically distinguishable colonies is known as A- selective medium B- enrichment medium C- differential medium D- none of these

Last Answer : differential medium

Description : When a substance is added to a liquid medium which inhibits the growth of unwanted bacteriaand favors the growth of wanted bacteria, it is known as A- differential medium B- enriched medium C- enrichment medium D-selective medium

Last Answer : enrichment medium

Description : Mac-Conkey medium is an example of A-transport medium B- enrichment medium C- differential medium D- all of these

Last Answer : differential medium

Description : The enrichment of bakers’ white bread and rolls was made compulsory by the Federal government in ____ as a war measure to improve the nutritional status of the people. a. 1940 c. 1942 b. 1941 d. 1943

Last Answer : b. 1941

Description : 19.The natural ageing of a lake by nutrient enrichment is called. a) Biomagnification b) Eutrophication c) Algal bloom d) Desertification

Last Answer : b) Eutrophication

Description : Enrichment of uranium by gaseous diffusion relies on the fact that uranium-235 diffuses through holes in the barriers more readily than uranium-238 does because uranium-235 is: w) a different chemical ... x) a different wavelength. y) resistant to magnetism. z) slightly lighter than uranium-238.

Last Answer : ANSWER: Z -- SLIGHTLY LIGHTER THAN URANIUM-238.

Description : CHEER stands for Options: A) Children Enrichment Education Electronic Radio B) Child Health Education Electronic Recording C) Children for Environment and Energy Representation D) None of these

Last Answer : A) Children Enrichment Education Electronic Radio 

Description : Which of the following is the last step of the rapid prototyping process? a.3D Modeling b.Data Conversion c.Building d.Postprocessing

Last Answer : d.Postprocessing

Description : Which of the following is the firststep of the rapid prototyping process? a.3D Modeling b.Data Conversion c.Building d.Postprocessing

Last Answer : a.3D Modeling

Description : Energy audit will help to keep focus on _____ which occurs in energy. a) difficulty b) change c) variations d) conversion

Last Answer : variations

Description : It states that mass is a commodity that can neither be heated nor destroyed with the exception of nuclear processes where the conversion of mass into energy is a fundamental principle  a. Law of ... Conservation of Energy  c. Law of Conservation of Power  d. Law of Conservation of Heat

Last Answer : Law of Conservation of Mass

Description : The equation Ein – Eout = E∆ system is known as ______.  A. Energy conservation  B. Energy equation  C. Energy balance  D. Energy conversion equation

Last Answer : Energy balance

Description : What is defined as the direct conversion of a substance from the solid to the vapor state or vice versa without passing the liquid state?  A. Condensation  B. Vaporization  C. Sublimation  D. Cryogenation

Last Answer : Sublimation

Description : Kelvin-Planck’s law deals with  A. conservation of work  B. conservation of heat  C. conversion of heat into work  D. conversion of work into heat

Last Answer : Answer: C

Description : Kelvin Planck’s law deals with  (a) conservation of heat  (b) conservation of work  (c) conversion of heat into work  (d) conversion fo work into heat  (e) conservation of mass.

Last Answer : Answer : c

Description : Zeroth law of thermodynamics  (a) deals with conversion of mass and energy  (b) deals with reversibility and irreversibility of process  (c) states that if two systems are both in equilibrium with a ... in thermal equilibrium with each other  (d) deals with heat engines  (e) does not exist.

Last Answer : Answer : c