Question:

Amongst the following, the exothermic transition(s) is/are:

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Exothermic transitions release heat, commonly seen in processes like crystallization and condensation.
Updated On: Apr 28, 2025
  • glass transition
  • crystallization
  • melting
  • sublimation
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The Correct Option is B

Solution and Explanation

Step 1: Understanding Exothermic vs Endothermic Transitions. Crystallization: 
Molecules go from higher-energy (amorphous) to lower-energy (ordered) state → releases energy (exothermic).
Step 2: Melting, sublimation, glass transition: 
All require energy input to break molecular order or increase molecular motion → endothermic. Only crystallization is exothermic among the given options.

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