Fusion reaction takes place at high temperature because (a) nuclei break up at high temperature (b) atoms get ionised at high temperature (c) kinetic energy is high enough to overcome the coulomb repulsion between nuclei (d) molecules break up at high temperature

Answer: (c). Nuclei are positively charged and repel each other by the Coulomb force. Only at very high temperature is their kinetic energy large enough to overcome this barrier and come within range of the nuclear force. So the answer is (c).

Fusion reaction takes place at high temperature because | NEET 2011 (AIPMT, Prelims)

Q27NEET 2011 · AIPMT · PRELIMSEasy

Nuclear Fission & Fusion

Fusion reaction takes place at high temperature because

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Answer: (c)

Nuclei are positively charged and repel each other by the Coulomb force.
Only at very high temperature is their kinetic energy large enough to overcome this barrier and come within range of the nuclear force.
So the answer is (c).

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