Which step during the dissolving process releases energy?
A. Separating solute particles from one another
B. Adding solute into the solvent
C. Separating solvent particles from one another
D. Mixing the particles of solute with particles of solvent
A and C are both endothermic, since energy is required to break bonds between solute-solute molecules and solvent-solvent molecules. The step that releases energy is when the solute and solvent are mixed (letter D).
D. Mixing the particles of solute with particles of solvent. It's like a party where everyone gets to dance and let loose! The mixing process creates an energetic atmosphere that releases the energy. Just imagine those dancing particles having a great time together!
The step during the dissolving process that releases energy is:
D. Mixing the particles of solute with particles of solvent.