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The energy released in nuclear reactions...

The energy released in nuclear reactions corresponding to 1 a.m.u. is about :

A

280 MeV

B

931.48 MeV

C

8.314 kJ

D

4.183 MeV.

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The correct Answer is:
B
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Calculate the energy released in the following nuclear reaction and hence calculate the energy released when 235 gram of uranium-235 undergoes fission. U_(92)^(235) + n_(0)^(1) to Kr_(36)^(92) + Ba_(56)^(141) + 3n_(0)^(1) Rest masses of U^(235), Ba^(141) ,Kr^(92) and neutron are 235.04390 amu, 140.91390 amu, 91.89730 amu and 1.00867 amu respectively. Avogadro number = 6.023 xx 10^(23) .

Consider the D–T reaction (deuterium–tritium fusion) ""_(1)^(2)H + ""_(1)^(3)H to ""_(2)^(4)He + n (a) Calculate the energy released in MeV in this reaction from the data: m (""_(1)^(2)H) = 2.014102u m(""_1^(3)H) = 3.016049 u (b) Consider the radius of both deuterium and tritium to be pproximately 2.0 fm. What is the kinetic energy needed to overcome the coulomb repulsion between the two nuclei? To what temperature must the gas be heated to initiate the reaction? (Hint: Kinetic energy required for one fusion event =average thermal kinetic energy available with the interacting particles = 2(3kT/2), k = Boltzman’s constant, T = absolute temperature.)

A thermal neutron strikes U_(92)^(235) nucleus to produce fission. The nuclear reaction is as given below : n_(0)^(1) + U_(92)^(235) to Ba_(56)^(141) + Kr_(36)^(92) +3n_(0)^(1) + E Calculate the energy released in MeV. Hence calculate the total energy released in the fission of 1 Kg of U_(92)^(235) . Given mass of U_(92)^(235) = 235.043933 amu Mass of neutron n_(0)^(1) =1.008665 amu Mass of Ba_(56)^(141)=140.917700 amu Mass of Kr_(36)^(92)=91.895400 amu

MODERN PUBLICATION-NUCLEAR CHEMISTRY-Multiple Choice Questions
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  2. In the series : ""(88)^(226)Raoverset(-alpha)to""(86)^(222)Rnoverset...

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  3. The energy released in nuclear reactions corresponding to 1 a.m.u. is ...

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  4. Uranium series is also known as:

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  7. The radiant energy of the sun is due to:

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  8. The phenomenon of nuclear fission was experimentally observed by :

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  9. Which is used as a neutron absorber in nuclear reactors to control the...

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  10. Average life period is equal to :

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  11. In the nuclear reaction : ""(13)^(27)Al+""(2)^(4)Heto""(15)^(30)X+""...

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  12. If an element emits an alpha-particle, then the position of daughter e...

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  13. The equipment used to carry out the fission reaction in a controlled m...

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  14. The radioactive isotope of carbon used in radio carbon dating is :

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  15. The first positron emitter discovered was :

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  16. The half life periods of four isotopes are given : I = 6.7 years II ...

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  17. Which of the following process results in emission of X-rays ?

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  18. Explain the principle behind the Hydrogen bomb.

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  19. The 4n series starts from thorium-232 and ends at :

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  20. In the reaction : ""(84)^(215)Poto""(82)^(211)Pb+""(2)^(4)He If Pb...

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