Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Given the atomic masses (in atomic mass units
PHYSICS · Single correct · CBSE · Physics · Nuclei · Nuclei
Problem
Given the atomic masses (in atomic mass units, u):
1
2
H
=
2.014102
^{2}_{1}\text{H}=2.014102
1
2
H
=
2.014102
,
1
3
H
=
3.016049
^{3}_{1}\text{H}=3.016049
1
3
H
=
3.016049
,
2
4
He
=
4.002603
^{4}_{2}\text{He}=4.002603
2
4
He
=
4.002603
, and
0
1
n
=
1.008665
^{1}_{0}\text{n}=1.008665
0
1
n
=
1.008665
, calculate the Q-value (in MeV) for the fusion reaction
1
2
H
+
1
3
H
→
2
4
He
+
0
1
n
^{2}_{1}\text{H}+^{3}_{1}\text{H}\;\rightarrow\;^{4}_{2}\text{He}+^{1}_{0}\text{n}
1
2
H
+
1
3
H
→
2
4
He
+
0
1
n
. (a)
+
18.9
MeV
+18.9\,\text{MeV}
+
18.9
MeV
(b)
−
17.6
MeV
-17.6\,\text{MeV}
−
17.6
MeV
(c)
+
17.6
MeV
+17.6\,\text{MeV}
+
17.6
MeV
(d)
+
16.2
MeV
+16.2\,\text{MeV}
+
16.2
MeV
Related theory
Nuclear Fusion
Nuclear Reactions
Mass-Energy Equivalence
Nuclear physics
Atomic Structure
Mass defect and binding energy
Mass-energy relation
Nuclei
Browse the problem library