Why does an solution of Nacl in water conduct electricity but not solid Nacl (common salt)?



Answer:
ANYTHING conducts electricity when it has freely move-able charge carriers which can be free electrons in solids or ions in a liquid.
Solid NaCl is not a metal. In fact the free electrons of Sodium atoms are "locked" in the strong ionic bonds with Chlorine atoms. Hence no possibility of electric conduction.
When NaCl is dissolved in water it results in hydrolysis whereby the solution becomes ionic. The ions are able to freely move about in the solution and hence the solution can conduct electricity.
because in the solid form, the atoms are tightly packed so the ions cannot move around to carry the electric current. only in the liquid form can the ions move freely over each other to conduct electricity.

does it make sense? it's a chapter we've just gone over at school :D
when dissolved in water, na+ and cl- are formed and are free radicals suitable to transmit charges,, it is in a unstable form. that is why it conducts electricity..
you must first understand why anything conducts electricity
Its because of the presence of free electrons
metals have free electrons thus they conduct electricity
now,the case of an NaCl sol.
you know when in solution NaCl gets ionised into Na+ and Cl-
ions thus producing free ions
these free ions are responsible for conduction of PURE NaCl sol.
Solid NACL is a cryastal latice structure. It means there is tight bonding of atoms in the molecule thus there cannot be any movement of atoms.
when water is added the covalent bond between this atoms losens resulting in free movement of atoms to carry charge. thus it is an bad conductor in solid state but good conductor in aqouse state.
Ions carries electrical charges, in solid NaCl molecules, the elements(Na, Cl) are held together by strong electrostatic force of attraction which need to be broken into ions in order to conduct electricity. In water solution this bound between the atoms breaks and they exist as Na+(cation) & and Cl-(anion) ions, hence they conduct electricity.
In solid sodium chloride the sodium and chlorine ions are held by ionic bonds in the crystal lattice.

In an ionic medium electric charges are carried by the positive and negative ions and not by free electrons. In the solid state the ions cannot move.

However, if the sodium chloride is melted (Not dissolved in water) and a DC is applied to this molten electrolyte current flows quite well. Since there are no other ions, at the cathode sodium metal and at the anode Chlorine gas will be liberated.

In the aqueous solution of sodium chloride, Hydrogen is liberated at the cathode and Chlorine gas at the anode.
For electric conduction, free ions required. In solid NaCl, free ions are not there. When dissolved in water, free ions are obtained.
it conducts electricity when it has freely move-able charge carriers which can be free electrons in solids or ions in a liquid.
Solid NaCl is not a metal. In fact the free electrons of Sodium atoms are "locked" in the strong ionic bonds with Chlorine atoms. Hence no possibility of electric conduction.
When NaCl is dissolved in water it results in hydrolysis whereby the solution becomes ionic. The ions are able to freely move about in the solution and hence the solution can conduct electricity.
because in the solid form, the atoms are tightly packed so the ions cannot move around to carry the electric current. only in the liquid form can the ions move freely over each other to conduct electricity.

when dissolved in water, na+ and cl- are formed and are free radicals suitable to transmit charges,, it is in a unstable form. that is why it conducts electricity


you must first understand why anything conducts electricity
Its because of the presence of free electrons
metals have free electrons thus they conduct electricity
now,the case of an NaCl sol.
you know when in solution NaCl gets ionised into Na+ and Cl-
ions thus producing free ions
these free ions are responsible for conduction of PURE NaCl sol.


Solid NACL is a cryastal latice structure. It means there is tight bonding of atoms in the molecule thus there cannot be any movement of atoms.
when water is added the covalent bond between this atoms losens resulting in free movement of atoms to carry charge. thus it is an bad conductor in solid state but good conductor in aqouse state.


Ions carries electrical charges, in solid NaCl molecules, the elements(Na, Cl) are held together by strong electrostatic force of attraction which need to be broken into ions in order to conduct electricity. In water solution this bound between the atoms breaks and they exist as Na+(cation) & and Cl-(anion) ions, hence they conduct electricity.


In solid sodium chloride the sodium and chlorine ions are held by ionic bonds in the crystal lattice.

In an ionic medium electric charges are carried by the positive and negative ions and not by free electrons. In the solid state the ions cannot move.

However, if the sodium chloride is melted (Not dissolved in water) and a DC is applied to this molten electrolyte current flows quite well. Since there are no other ions, at the cathode sodium metal and at the anode Chlorine gas will be liberated.

In the aqueous solution of sodium chloride, Hydrogen is liberated at the cathode and Chlorine gas at the anode.

For electric conduction, free ions required. In solid NaCl, free ions are not there. When dissolved in water, free ions are obtained
This is bcoz solid NaCl doesn't have free ions to move which can only conduct electricity. when Nacl is dissolv'd in water the ions bcome free to move hence conduct electricity

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