JAMB - Physics (2000 - No. 26)
In a thermonuclear reaction, the total initial mass is 5.02 x \(10^{-{2}{7}}\)kg and the total final mass is 5.01 x \(10^{-{2}{7}}\)kg. The energy released in the process is
[c = 3.0 x \(10^8\) ms-1]
[c = 3.0 x \(10^8\) ms-1]
9.0 x 10-13J
9.0 x 10-12J
9.0 x 10-11J
9.0 x 10-10J
Explanation
In thermonuclear reactions,
Energy = ∆mC\(^2\)
∆m = Change in Mass
C = Speed of light
∴ 5.02 x 10\(^{-27}\) - 5.01 x 10\(^{-27}\) x [3 x 10\(^8\)]\(^2\)
0.01 x 10\(^{-27}\) x 9 x 10\(^{16}\)
E = 9.0 x 10\(^{-13}\)J
Energy = ∆mC\(^2\)
∆m = Change in Mass
C = Speed of light
∴ 5.02 x 10\(^{-27}\) - 5.01 x 10\(^{-27}\) x [3 x 10\(^8\)]\(^2\)
0.01 x 10\(^{-27}\) x 9 x 10\(^{16}\)
E = 9.0 x 10\(^{-13}\)J
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