C Probot Unit 1 Question 12 of 27 What is the change in entropy (Delta S) when sodium chloride dissolves in water? A. Greater than 0 B. Less than 0 C. Equal to Delta H D. Equal to 0

Entropy ( ) is a measure of the disorder or randomness in a system. When sodium chloride (NaCl) dissolves in water, the solid crystal lattice of NaCl breaks apart, and the individual sodium (Na+) and chloride (Cl-) ions become dispersed throughout the water. This process results in a greater number of possible positions and states for the ions compared to their ordered state in the solid crystal lattice. Consequently, the disorder of the system increases, which means that the entropy change ( ) is positive. Therefore, the correct answer is "Greater than 0".