Why high temperature is required for Nuclear fusion ?

All nuclear reactions absorb heat

No worries! We‘ve got your back. Try BYJU‘S free classes today!

The particles can not come together unless they are moving rapidly

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

The binding energy must be supplied from an external source

No worries! We‘ve got your back. Try BYJU‘S free classes today!

The mass defect must be supplied

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B The particles can not come together unless they are moving rapidly
Fusion reaction takes place at temperatures around $10^{7} k$ . It requires this high temperature so that nucleus start moving at rapidly speed, which in turn increases their kinetic, so that they overcome the repulsion between them and can come together.

Suggest Corrections

Similar questions

Q. Assertion :Nuclear fusion are made at very high temperature,

i . e

10^{7}

K. Reason: Nuclear fusion reactions are exoergic.

(a) What is nuclear fusion ? Explain with an example. Write the equation of the reaction involved
(b) Why are very high temperatures required for fusion to occur ?

Q. Assertion : Nuclear energy can be produced only by fusion of certain elements.
Reason : Nuclear reactions generate enormous energy.

What does mean by mass defect? Establish relation between mass defect and nuclear binding energy. And hence write the expression for binding energy per nucleon.

Statement I: Nuclear fission is a spontaneous process i.e. there is no need for external energy supply for this to happen.
Statement II: In a nuclear fission reaction the rest mass energy of the parent nucleus is more than the combined rest mass energy of two daughter fragments and neutrons.

Join BYJU'S Learning Program