A fusion reaction (^2_1 H + ^3_1 H ^4_2 He +n ) releases per event

PHYSICS · Multi-part · CBSE · Physics · Nuclei · Nuclei

Problem

A fusion reaction

^2_1\text{H}+{}^3_1\text{H}\rightarrow{}^4_2\text{He}+n

releases

17.6\,\text{MeV}

per event, while each fission of

^{235}

U releases

200\,\text{MeV}

. (a) Electrical energy from fission of

1\,\text{kg}

^{235}

U (30 % efficiency) (b) Mass of D–T mixture for equal electrical output (40 % efficiency) (c) Ratio

m_{\text{fusion}}:m_{\text{fission}}