Essays Tagged: "Uranium-235"

Nuclear Power

(5 pages) 101 0 3.6 May/1996

Subjects: Science Essays > Physics

Chernobyl Nuclear Power Plant Disaster

(10 pages) 182 0 3.9 Jan/1996

Subjects: Science Essays > Physics

Fission or Fusion

in.First, the energy per fission is very large. In practical units, the fission of 1 kg (2.2 lb) of uranium-235 releases 18.7 million kilowatt-hours as heat. Second, the fission process initiated by t ... n kilowatt-hours as heat. Second, the fission process initiated by the absorption of one neutron in uranium-235 releases about 2.5 neutrons, on the average, from the split nuclei. The neutrons release ...

(5 pages) 51 0 4.5 Mar/1997

Subjects: Science Essays > Physics

Nuclear energy

). First, the energy per fission is very large. In practical units, the fission of 1 kg (2.2 lb) of uranium-235 releases 18.7 million kilowatt-hours as heat. Second, the fission process initiated by t ... n kilowatt-hours as heat. Second, the fission process initiated by the absorption of one neutron in uranium-235 releases about 2.5 neutrons, on the average, from the split nuclei. The neutrons release ...

(1 pages) 45 0 4.2 Apr/2003

Subjects: Science Essays > Technology

Nuclear Droppings on Hiroshima and Nagasaki.

ein and several other scientists notified Roosevelt of the rising efforts in Nazi Germany to purify Uranium-235, which could be used to build an atomic bomb (Bellis). It was only shortly after when th ...

(4 pages) 60 0 3.7 Aug/2003

Subjects: History Term Papers > World History > World War II

Atomic Bomb: Fission vs. Fusion

ard, Eugene Wingner, and Edward Teller, Einstein told Roosevelt about Nazi German efforts to purify Uranium-235 which might be used to build an atomic bomb. Shortly after that the United States Govern ... duction of ample amounts of 'enriched' uranium to sustain a chain reaction."(Outlaw 2) At the time, Uranium-235 was hard to extract. Of the Uranium ore mined, only about 1/500 th of it ended up as Ura ...

(7 pages) 65 1 5.0 Apr/2004

Subjects: Science Essays > Physics

Pros/Cons, advantages/disadvantages of nuclear energy/fossil fuels.

the enormous amounts of coal or the pollution that fossil fuels cause. Natural uranium is only 0.7%"uranium-235, which the uranium that undergoes fission in this type of reactor. The rest of the urani ... st of the uranium is uranium-238, which does not react almost at all, and is only mixed in with the uranium-235, because it is too expensive and a waste of time to separate from it. Although that was ...

(4 pages) 103 0 5.0 Feb/2005

Subjects: Science Essays > Physics

NUCLEAR BRIEFING Describe how the reactor at Three Mile Island (or Chernobyl) was supposed to work. What went wrong and what are the implications of the accident?

y into the uranium bundle to shut the reactor down in the case of an accident or to change the fuel.Uranium-235 is used in nuclear reactors because of the large amount of energy produced when it is fi ... of energy produced when it is fissioned. However, in natural Uranium deposits there is only about 1 Uranium-235 atom to 140 Uranium-238 atoms (which do not fission) making it less effective for sustai ...

(5 pages) 33 0 4.5 Jul/2005

Subjects: Science Essays > Physics

The survivor on the land of Hiroshima - Miss Toshinki Sasaki.

ed. According to researchers, the nuclear bomb that was dropped there was made from highly-enriched uranium-235. About sixty kilograms of this element was used in the bomb that was dropped on Hiroshim ...

(4 pages) 25 0 4.5 Nov/2005

Subjects: History Term Papers > Asian History

Atomic Enegy

(6 pages) 25 0 5.0 May/2001

Subjects: Science Essays > Chemistry

Nukes

(1 pages) 357 0 0.0 Jun/2001

Subjects: Science Essays > Chemistry

The use of nuclear power as a

2nd 1939, some scientists wrote to president Roosevelt about the efforts in Nazi Germany to purify Uranium-235 with which might be turned to be used to build an atomic bomb. It was shortly thereafter ...

(3 pages) 13 0 0.0 Feb/2008

Subjects: History Term Papers > World History > World War II

The separation process of uranium from the compound uranium hexafluoride

ning U-238 isotope after enrichment. Since only a small proportion of the original uranium contains Uranium-235, large amounts of waste result from the enrichment process in the form of uranium hexafl ...

(3 pages) 1050 0 0.0 Jun/2008

Subjects: Science Essays > Chemistry

Radon. Our Major Source of Radiation Dose

cur in nature; radon-220, which occurs in thethorium-232 decay chain (table 2) and radon-219 in the uranium-235 chain(table 3). Both these isotopes have half-lives of under a minute and are lessimport ... a 36 minutesBi211 Alpha 2.15 minutesTl207 Beta 4.77 minutesPb207 StableTable 3. Uranium-235 Decay ChainRadon is one of the group 0 elements, the noble gases, and is, therefore,chem ...

(9 pages) 851 0 0.0 Oct/2008

Subjects: Science Essays > Chemistry