Fusion reaction takes place at very high temperature because:

MCQ

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

✓

Answer

Kinetic energy is high enough to overcome repulsion between nuclei

Explanation:

Fusion reactions takes place at temperature about 10⁷K it requires this high temperature so that nucleus are moving at very high speed, so that they have high kinetic energy and can overcome the repulsion between nuclei and come together.

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