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Question

The binding energy per nucleon for C12 is 7.68 MeV and that for C13 is 7.5 MeV. The energy required to remove a neutron from C13 is

A
5.34 MeV
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B
5.5 MeV
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C
9.5 MeV
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D
9.34 MeV
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Solution

The correct option is A 5.34 MeV
For C13:

Binding energy per nucleon =7.5 MeV

Binding energy=13×7.5=97.5 MeV

For C12:

Binding energy per nucleon=7.68 MeV

Binding energy =12×7.68=92.16 MeV

We have,

6C136C12+0n1

Energy required to remove a neutron,

ΔE=97.592.16=5.34 MeV

Hence, (A) is the correct answer.

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