Potassium chloride readily dissolves in water. With the use of a labelled diagram, describe the changes in bonding and entropy that occurs during this process. (4 marks)
→ Potassium chloride has a high tendency to dissociate into
→ Water is a dipolar molecule because each atom has a partial charge, as shown in the diagram.
→ The oxygen dipole in water has a partial negative charge and is attracted to the potassium ion. The hydrogen dipoles have a partial negative charge and are attracted to the chloride ion.
→ This attraction breaks the ionic bonds and forms ion-dipole bonds.
→ The entropy of the system is increased as the ionic bonds of the
→ Potassium chloride has a high tendency to dissociate into
→ Water is a dipolar molecule because each atom has a partial charge, as shown in the diagram.
→ The oxygen dipole in water has a partial negative charge and is attracted to the potassium ion. The hydrogen dipoles have a partial negative charge and are attracted to the chloride ion.
→ This attraction breaks the ionic bonds and forms ion-dipole bonds.
→ The entropy of the system is increased as the ionic bonds of the