English

A heavy nucleus P of mass number 240 and binding energy of 7.6 MeV per nucleon splits into two nuclei Q and R of mass number 110 and 130 and binding energy per nucleon of 8.5 MeV - Physics

Advertisements
Advertisements

Question

A heavy nucleus P of mass number 240 and binding energy of 7.6 MeV per nucleon splits into two nuclei Q and R of mass number 110 and 130 and binding energy per nucleon of 8.5 MeV and 8.4 MeV respectively. Calculate the energy released in fission.

Numerical

Solution

The nuclear reaction,

\[\ce{P^240 -> Q^110 + R^130 + Q}\]

As per the given data energy released in the fission,

Q = 110 × 8.5 + 130 × 8.4 - 240 × 7.6

Q = 203 MeV

Hence, it is the energy released in the fission.

shaalaa.com
Nuclear Energy - Nuclear Fission
  Is there an error in this question or solution?
2022-2023 (March) Delhi Set 3

RELATED QUESTIONS

In a typical fission reaction, the nucleus is split into two middle-weight nuclei of unequal masses. Which of the two (heavier or lighter) has greater kinetic energy? Which one has greater liner momentum? 


If three helium nuclei combine to form a carbon nucleus, energy is liberated. Why can't helium nuclei combine on their own and minimise the energy?


As compared to 12C atom, 14C atom has


A free neutron decays to a proton but a free proton does not decay to a neutron. This is because


A uranium reactor develops thermal energy at a rate of 300 MW. Calculate the amount of 235U being consumed every second. Average released per fission is 200 MeV.


Calculate the energy that can be obtained from 1 kg of water through the fusion reaction 2H + 2H → 3H + p. Assume that 1.5 × 10−2% of natural water is heavy water D2O (by number of molecules) and all the deuterium is used for fusion.

(Use Mass of proton mp = 1.007276 u, Mass of `""_1^1"H"` atom = 1.007825 u, Mass of neutron mn = 1.008665 u, Mass of electron = 0.0005486 u ≈ 511 keV/c2,1 u = 931 MeV/c2.)


A town has a population of 1 million. The average electric power needed per person is 300 W. A reactor is to be designed to supply power to this town. The efficiency with which thermal power is converted into electric power is aimed at 25%. (a) Assuming 200 MeV to thermal energy to come from each fission event on an average, find the number of events that should take place every day. (b) Assuming the fission to take place largely through 235U, at what rate will the amount of 235U decrease? Express your answer in kg per day. (c) Assuming that uranium enriched to 3% in 235U will be used, how much uranium is needed per month (30 days)?


Which particle is most likely to be captured by a 235u nucleus and cause it to undergo fission? 


Assuming that about 200 MeV of energy is released per fission of 92U235 nuclei, then the mass of U235 consumed per day in a fission reactor of power 1 megawatt will be approximately ______.


Distinguish between nuclear fission and fusion giving an example of each.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×