Q.

The  Q-value of the fusion reaction, He  4+He  4→Be  8 is -9.315×10xeV. Find the value of x. Atomic mass of Be  8 is 8.0053u and that of He  4 is 4.0026u

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answer is 0004.00.

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Detailed Solution

Q -value =Δm×931.5MeV​⇒Q=2×4.0026−8.0053×931.5MeV​⇒Q=−0.09315MeV=−9.315×104eV
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The  Q-value of the fusion reaction, He  4+He  4→Be  8 is -9.315×10xeV. Find the value of x. Atomic mass of Be  8 is 8.0053u and that of He  4 is 4.0026u