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The threshold temperature above which the thermonuclear reaction $${}_2^3{\text{He}} + {}_2^3{\text{He}} \to {}_2^4{\text{He}} + 2{}_1^1{\text{He}} + 12.86{\text{ MeV}}$$       can occur is (use e2/4πε0 = 1.44 × 10-15 MeV-m)

The threshold temperature above which the thermonuclear reaction $${}_2^3{\text{He}} + {}_2^3{\text{He}} \to {}_2^4{\text{He}} + 2{}_1^1{\text{He}} + 12.86{\text{ MeV}}$$       can occur is (use e2/4πε0 = 1.44 × 10-15 MeV-m) Correct Answer 1.28 × 10<sup>8</sup> K

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