Question

Fusion reaction is possible at high temperature because -

• A. Atoms are ionised at high temperature
• B. Molecules break-up at high temperature
• C. Nuclei break-up at high temperature
• D. Kinetic energy is high enough to overcome repulsion between nuclei.

Answer 1

The correct option is D Kinetic energy is high enough to overcome repulsion between nuclei.

As $T$ increases, $\text{KE}$ increases and due to this , it overcomes the coulombic repulsion between the nuclei.

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> Hence, $\left(D\right)$ is the correct answer.