Question 29: Atoms & Nuclei

Question

Fusion reaction is more energetic than fission reaction because

Accepted Answer

LetÃ¢ÂÂs work it out step by step:
Mass of 8 protons
$$M_p = 8 	imes 1.00727 = 8.05816\ 	ext{amu}$$
Mass of 8 neutrons
$$M_n = 8 	imes 1.00866 = 8.06928\ 	ext{amu}$$
Sum of individual nucleon masses
$$M_{m total} = M_p + M_n = 8.05816 + 8.06928 = 16.12744\ 	ext{amu}$$
Measured mass of the nucleus
$$M_{m nucleus} = 15.99053\ 	ext{amu}$$
Mass defect
$$\Delta m = M_{m total} - M_{m nucleus} = 16.12744 - 15.99053 = 0.13691\ 	ext{amu}$$
That matches Option C: 0.13691 amu.

Answer

Uncontrolled chain reaction is taking place In the fusion reaction.

Answer

Fusion reaction is taking place at very high temperature

Answer

The energy released per unit mass of the fuel in fusion reaction is larger than the energy released per unit mass of the fuel in fission reaction.

Answer

In the fusion reaction lighter nuclei combine to form a heavier nucleus

Atoms & Nuclei

Fusion reaction is more energetic than fission reaction because

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