# Energy of fission

1. Homework Statement

Find the energy which comes out with fission of the nucleus of deuterium and tritium, so we receive like product the nucleus of helium.

mass of tritium$$m(\stackrel{3}{1}H)=3,016049u$$
mass of the nucleus of deuterium $$m(\stackrel{2}{1}H)=2,013553u$$
mass of the nucleus of helium $$m(\stackrel{4}{2}He)=4,002603u$$

2. Homework Equations

$$\Delta E=\Delta m c^2$$

3. The Attempt at a Solution

The nuclear reaction

$$\stackrel{2}{1}H + \stackrel{3}{1}H \rightarrow \stackrel{4}{2}He + \stackrel{1}{0}n + energy$$

How will I find the mass of triton( the nucleus of tritium) ?

Related Introductory Physics Homework Help News on Phys.org
Andrew Mason
Homework Helper
How will I find the mass of triton( the nucleus of tritium) ?
Take the mass of the atom and subtract the mass of the electron. The binding energy of the electron is not enough to make a significant difference in the mass of the atom.

AM

(3,016049u+2,013553u)-(4,002603u+1,008665u)=0,018334

0,018334*931,494 MeV=17,078011 MeV

And in my text book results it is 17,8 MeV. Is their fault?

malawi_glenn
And you will obtain that answer if you use $$m(\stackrel{2}{1}H)=2,014101783u$$