
What is the difference between electrolytic dissociation and ionization?
Answer
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Hint: When an electrical current is passed to ionic compounds in molten state , it undergoes dissociation to form cations and anions. Cations migrate towards negatively charged cathode and anions migrate towards the positively charged anode.
Complete step by step answer:
ELECTROLYTIC DISSOCIATION IN MOLTEN STATE - EXAMPLE
When an electrical current is older ionic compounds in molten form, it dissociates into cations and anions. Cations migrate towards negatively cathode and anions migrate towards the charged anode.
ELECTROLYTIC DISSOCIATION IN AQUEOUS STATE - DEFINITION
When an electrical current is seasoned as a solution of ionic compounds, cations from the ionic compound similarly as ${{H}^{+}}$ ions from water, migrate towards the cathode. Similarly, $O{{H}^{-}}$ ions from water and anion from the ionic compound and migrate towards the anode.
The terms ionisation and dissociation are often confused. We know that the electrolytes are mostly ionic solids in which oppositely charged ions that is cations and anions are mutually held by strong electrostatic forces of attraction. In solution, these ions are readily formed and this is known as ionisation. However, upon dilution, the interionic attraction is reduced. As a result, the ions get separated and this is called dissociation of the electrolyte. Thus, we conclude that, Change of electrolyte into ions is ionisation and separation of ions is dissociation.
Degree of dissociation or degree of ionization is defined as the ratio of the number of molecules of the electrolyte which split into ions to the total number of molecules of the electrolyte.
Note: Some examples of ionization are $HCl,{{H}_{2}}C{{O}_{3}},N{{H}_{4}}OH$.
Some examples of dissociation are $KCl$, $PbBr$.
Complete step by step answer:
ELECTROLYTIC DISSOCIATION IN MOLTEN STATE - EXAMPLE
When an electrical current is older ionic compounds in molten form, it dissociates into cations and anions. Cations migrate towards negatively cathode and anions migrate towards the charged anode.
ELECTROLYTIC DISSOCIATION IN AQUEOUS STATE - DEFINITION
When an electrical current is seasoned as a solution of ionic compounds, cations from the ionic compound similarly as ${{H}^{+}}$ ions from water, migrate towards the cathode. Similarly, $O{{H}^{-}}$ ions from water and anion from the ionic compound and migrate towards the anode.
The terms ionisation and dissociation are often confused. We know that the electrolytes are mostly ionic solids in which oppositely charged ions that is cations and anions are mutually held by strong electrostatic forces of attraction. In solution, these ions are readily formed and this is known as ionisation. However, upon dilution, the interionic attraction is reduced. As a result, the ions get separated and this is called dissociation of the electrolyte. Thus, we conclude that, Change of electrolyte into ions is ionisation and separation of ions is dissociation.
Degree of dissociation or degree of ionization is defined as the ratio of the number of molecules of the electrolyte which split into ions to the total number of molecules of the electrolyte.
Note: Some examples of ionization are $HCl,{{H}_{2}}C{{O}_{3}},N{{H}_{4}}OH$.
Some examples of dissociation are $KCl$, $PbBr$.
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