Binding energy per vs mass curve for nucleus is shown in the figure `W,X,Y`and `Z` are four nuclei indicated on the curve . The process that would rease energy is
A
`Y rarr 2Z`
B
`W rarr X + Z`
C
`W rarr 2Y`
D
`X rarr Y + Z`
Text Solution
Verified by Experts
The correct Answer is:
C
KEY CONCEPT: Energy is released when stability increases . This will happen when binding energy per nucleon increases Reactant Reaction(a) `60 xx 8.5 MeV = 510 MeV` Reaction(b) `120 xx 7.5 = 900 MeV` MeV` Reaction(c) `120 xx 7.5 = 900 MeV` MeV` Reaction(d) `90 xx 8 = 720` Product `2 xx 30 xx 5 = 300 MeV` `(90) xx 8 + 30 xx 5) = 870 MeV` `2 xx 60 xx 8.5 = 1020 MeV` `(60 xx 85 + 30 xx 5) = 600 MeV`
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