Consider the Nuclear Reaction the Known Atomic Masses Are ${ } _ { 7 } ^ { 14 } \mathrm {~N} : \quad 14.003074 \mathrm { u }$

question 26

Multiple Choice

Consider the nuclear reaction ${ } _ { 7 } ^ { 14 } \mathrm {~N} + { } _ { 2 } ^ { 4 } \mathrm { He } \rightarrow { } _ { 8 } ^ { 17 } \mathrm { O } + { } _ { 1 } ^ { 1 } \mathrm { H }$ . The known atomic masses are ${ } _ { 7 } ^ { 14 } \mathrm {~N} : \quad 14.003074 \mathrm { u }$
${ } _ { 2 } ^ { 4 } \mathrm { He } : \quad 4.002603 \mathrm { u }$
${ } _ { 1 } ^ { 1 } \mathrm { H } : \quad 1.007825 \mathrm { u }$
${ } _ { 8 } ^ { 17 } \mathrm { O } : \quad 16.999131 \mathrm { u }$
What is the $Q$ -value (or reaction energy) of this reaction? $\left( 1 \mathrm { u } = 931.5 \mathrm { MeV } / \mathrm { c } ^ { 2 } \right)$

• A) \(1.191 \mathrm { MeV }\)
• B) \(- 1.279 \times 10 ^ { - 3 } \mathrm { MeV }\)
• C) \(1.279 \times 10 ^ { - 3 } \mathrm { MeV }\)
• D) \(- 1.191 \mathrm { MeV }\)

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