MCQ
A nuclear reaction with positive Q value is:
- AEndothermic
- BExothermic
- CEither endothermic or exothermic
- DNeither endothermic nor exothermic
✓
Answer
- Exothermic
Explanation:
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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