The process with negative entropy change is:

Question

Canvas Classes · Accepted Answer

Strategy:
 Identify the reaction where the system's molecular randomness or volume occupied by gases decreases.

Step 1: Evaluate options
- (1) : The number of gaseous moles decreases from  to . This represents a significant decrease in entropy ().
- (2) Dissolving Iodine dispersion into a larger solvent volume increases entropy.
- (3)  increases entropy due to gas production.
- (4) Sublimation increases entropy significantly.

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