Question

A nuclear fusion reaction is also called a thermonuclear reaction because ______.

Options

• it occurs by heating the reacting nuclei

• it requires 10⁷ K temperature

• it can occur at temperature just above room temperature

• it occurs at temperature of 100 K

Answer 1

A nuclear fusion reaction is also called a thermonuclear reaction because it requires 10⁷ K temperature.

Explanation:

Nuclear fusion requires an extremely high temperature, of the order of 10⁷ K, to give positively charged nuclei enough energy to overcome their mutual electrostatic repulsion.

Therefore, it is called a thermonuclear reaction because it occurs at very high temperatures.