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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Asked by varma.renu9481 | 06 Mar, 2023, 05:44: PM
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Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
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Asked by Topperlearning User | 02 Jun, 2015, 01:03: PM
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nucleus with subsequent emission of 
- particle Write the corresponding nuclear reaction. Calculate the energy released in this reaction.
Given mass of 3 L
e = 4.000 26044 a.m.u.
Mass of neutron 
= 1.0086654 a.m.u.
Mass of tritium 
= 3.016049 a.m.u.
Asked by Topperlearning User | 02 Jun, 2015, 10:23: AM
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Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
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undergoes β- decay and becomes 
, Calculate the maximum kinetic energy of electrons emitted assuming that the daughter nucleus and anti- neutrino carry negligible kinetic energy.
Asked by Topperlearning User | 09 Jul, 2014, 12:48: PM
ANSWERED BY EXPERTCBSE 12-science - Physics
Atomic mass of 
= 238.05079 u
Atomic mass of 
= 234.04363 u
Atomic mass of 
= 4.00260 u
1u = 931.5 Me V/c2
Is this decay spontaneous? Give reason.Asked by Topperlearning User | 02 Jun, 2015, 09:11: AM
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Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
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