Question

Fusion problems, find the energy release

• ²H +³H → ⁴He + ?
• ⁴He +⁴He → ⁷Be + ?
• ²H +³He → ⁴He + ?
• ²H + ¹H → ᵞ+ ?

Answer 1

Solution:

a) ²H +³H → ⁴He + ¹n

E = mc²

= [4.00260 + 1.007825- 3.01605 - 2.014102 ]*931.5

= - 18.4 MeV

b) ⁴He +⁴He → ⁷Be + ¹n

E = mc²

= [7.01692872 + 1.007825- 2*4.00260 ]*931.5

= 18.2 MeV .

c) ²H +³He → ⁴He + ¹n

E = mc²

= [4.00260 + 1.007825- 3.01605 - 2.014102 ]*931.5

= -18.4 MeV .

d) ²H + ¹H → ᵞ+ ³H

E = mc²

= [3.01605 - 2.014102 - 1.007825]*931.5

= -5.5 MeV.

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