AIIMS 2019 Chemistry Entropy MCQ Question
What is the activation energy (KJ/mol) for a reaction if its rate constant doubles when the temperature is raised from 300 K to 400 K ?
Correct Answer
Detailed Explanation
The statement is correct because when sparingly soluble salts dissolve in H₂O, they dissociate into ions, increasing the number of particles in solution. This increase in particle number leads to a higher entropy (ΔS) due to the greater randomness and disorder associated with the dissolved ions compared to the solid state. Other options are not applicable as they do not provide alternative explanations or relevant information regarding the entropy change associated with the dissolution process. Understanding the relationship between solubility, ion dissociation, and entropy is crucial in thermodynamics and solution chemistry.
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