Modern Physics 5 Question 26

29. Consider the reaction: 12H+12H=24He+Q. Mass of the deuterium atom =2.0141u. Mass of helium atom =4.0024u. This is a nuclear …….. reaction in which the energy Q released is …… MeV.

(1996, 2M)

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Answer:

Correct Answer: 29. 3.32×105W

Solution:

  1. Q=(Δm in atomic mass unit )×931.4MeV

=(2× mass of 1H2 mass of 2He4)×931.4MeV

=(2×2.01414.0024)×931.4MeV

Q24MeV (fusion)



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