Answer:
![\large \boxed{\text{17.59 MeV}}](https://img.qammunity.org/2021/formulas/chemistry/middle-school/kd13nmih7urxjbcyz3lm0na6enwn31tpu7.png)
Step-by-step explanation:
![\rm _(1)^(2)\text{H} + \, _(1)^(3)\text{H} \longrightarrow \, _(2)^(4)\text{He} + \,_(0)^(1)\text{n} + E](https://img.qammunity.org/2021/formulas/chemistry/middle-school/m03hcxwq26ddmw47b2oubdxeiql7jjwbbm.png)
1. Calculate the mass difference
Mass of ₁²H = 2.014 102 u
Mass of ₁³H = 3.016 049
Total = 5.030 151 u
Mass of ₂⁴He = 4.002 603
Mass of ₀¹n = 1.008 665
Total = 5.011 268
Difference = 0.018 883 u
2. Convert the mass difference to energy.
931.5 MeV = 1 u
![\text{Energy} = \text{0.018 883 u} * \frac{\text{931.5 MeV}}{\text{1 u}} = \textbf{17.59 MeV}\\\\\text{The energy released is $\large \boxed{\textbf{17.59 MeV}}$}](https://img.qammunity.org/2021/formulas/chemistry/middle-school/ixnfnk45xwre14sxgrp5ip148upo079u3b.png)