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  • Which is the process used to harness nuclear energy these days? Explain it briefly.

Which is the process used to harness nuclear energy these days? Explain it briefly.

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Answer:

Nuclear reaction is a process of making energy from radioactive substances as of now humans harness nuclear energy from the nuclear fission process. Nuclear fission is a process where a heavy unstable nucleus breaks into a stable nucleus and releases energy. In a nuclear reactor, a uranium nucleus is bombarded with neutrons and the nucleus turns unstable and breaks into two smaller nuclei and releases energy. This energy is used to convert liquid water into high-energy steam. Further, this steam is passed over turbines which rotate and generates electricity (alternating current)

Nuclear Reaction

_{92}^{235}\textrm{U}+_{0}^{1}\textrm{n}\rightarrow _{92}^{236}\textrm{U}\rightarrow _{56}^{144}\textrm{Ba}+_{36}^{89}\textrm{Kr}+3_{0}^{1}\textrm{n}+\text {Energy}

E = Δmc2             where E = energy released

m = difference in mass of the original nucleus and product nuclei

c = velocity of light [3 x 108 m/s]

This energy is expressed in terms of electron volt        [eV]

1eV = 1.602 x 1019 J

Major drawbacks of Nuclear Power:

1) There is no proper, cheap way to dispose of nuclear waste as it is biohazardous.

2) Risk of accidental leakage is very high and it will lead to lot of medical complications.

3) If the reaction is not controlled properly then we will be facing dire consequences.

4) The cost of installation is pretty high and requires high maintenance.

Posted by

infoexpert23

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