MCQ
A nuclear reaction with positive $Q$ value is:
- AEndothermic
- ✓Exothermic
- CEither endothermic or exothermic
- DNeither endothermic nor exothermic
✓
Answer
Correct option: B.
Exothermic
An exothermic reaction is that in which heat is released.
An exothermic reaction is that in which heat is absorbed.
In a nuclear reaction, if the mass of the product nucleus and outgoing particle is less than the mass of the target nucleus and bombarding particle, then energy is released $($exothermic reaction$),$ and $Q-$value is $+ve.$
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