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CBSE Class 12-science Answered

What is Q- value of a nuclear reaction?

Asked by Topperlearning User | 02 Jun, 2015, 01:03: PM

Expert Answer

Q value of nuclear reaction can be calculated from Einstein's mass energy equivalence relation, E = Δ m c². It may be positive or negative.Nuclear reaction in which the Q value is positive is called a exorgic reaction. A nuclear reaction in which Q value is negative is an endoergic reaction.

Answered by | 02 Jun, 2015, 03:03: PM

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CBSE 12-science - Physics

nuclei

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Asked by murshidibrahimkk | 08 Feb, 2024, 10:28: AM

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CBSE 12-science - Physics

. A nucleus of mass number 240 and having binding energy/nucleon 7.6 MeV splits into two fragments Y, Z of mass numbers 110 and 130 respectively. If the binding energy/nucleon of Y, Z is equal to 8.5 MeV each, calculate the energy released in the nuclear reaction.

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Asked by kailasks2007 | 28 Dec, 2023, 08:14: PM

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CBSE 12-science - Physics

Please answer this question. Draw a graph showing the variation of binding energy per nucleon as a function of mass number A. The binding energy per nucleon for heavy nuclei (A > 170) decreases with the increase in mass number. Explain.

Asked by varma.renu9481 | 06 Mar, 2023, 05:44: PM

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CBSE 12-science - Physics

Binding energies of ₈O¹⁶ and ₁₇Cl³⁵ are 127.35 MeV and 289.3 MeV respectively. Which of the two nuclei are more stable?

Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM

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CBSE 12-science - Physics

What is Q- value of a nuclear reaction?

Asked by Topperlearning User | 02 Jun, 2015, 01:03: PM

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CBSE 12-science - Physics

A neutron is absorbed by a ₃ L

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nucleus with subsequent emission of

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- particle Write the corresponding nuclear reaction. Calculate the energy released in this reaction. Given mass of ₃ L

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= 6.015126 a.m.u. Mass of ₂

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e = 4.000 26044 a.m.u. Mass of neutron

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= 1.0086654 a.m.u. Mass of tritium

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= 3.016049 a.m.u.

Asked by Topperlearning User | 02 Jun, 2015, 10:23: AM

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CBSE 12-science - Physics

Why is nuclear fusion not possible in laboratory?

Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM

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CBSE 12-science - Physics

Express 16mg mass into equivalent energy in electron volt?

Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM

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CBSE 12-science - Physics

Draw a curve between mass number and binding energy per nucleon. Give two salient features of the curve. Hence define binding energy?

Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM

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CBSE 12-science - Physics

A nucleus

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undergoes β^- decay and becomes

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, Calculate the maximum kinetic energy of electrons emitted assuming that the daughter nucleus and anti- neutrino carry negligible kinetic energy.

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Asked by Topperlearning User | 09 Jul, 2014, 12:48: PM

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