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Gaokao Physics Practice Question

大科学工程“人造太阳”主要是将氘核聚变反应释放的能量用来发电, 氘核聚变反应方程是: ${ }_{1}^{2} \mathrm{H}^{+} ^{2}_{1} \mathrm{H} \rightarrow_{2}^{3} \mathrm{He}+_{0}^{1} \mathrm{n}$, 已知 $_{1}^{2} \mathrm{H}$ 的质量为 $2.0136 \mathrm{u}$, $_{2}^{3} \mathrm{He}$ 的质量为 $3.0150 \mathrm{u},{ }_{0}^{1} \mathrm{n}$ 的质量为 $1.0087 \mathrm{u}, 1 \mathrm{u}=931 \mathrm{MeV} / \mathrm{c}^{2}$. 氘核聚变 反应中释放的核能约为

  1. A.$3.7 \mathrm{MeV}$
  2. B.$3.3 \mathrm{MeV}$
  3. C.$2.7 \mathrm{MeV}$
  4. D.$0.93 \mathrm{MeV}$

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