In a solid-state, the ions cannot move freely because of which it cannot conduct electricity. Whereas in a molten state the ions are free to move thus it can conduct electricity. That is why salt cannot conduct electricity in a molten state and becomes a good conductor of electricity in a molten state.
Why a salt which does not conduct electricity in solid state become a good conductor in molten state?
The ions of salt in a solid state are bonded with strong inter-particle forces. Hence, they are not free to move in solid-state and cannot conduct electricity. However, when this salt melts, its constituent ions get separated from each other. Thus, they are free to move across the melted salt and conduct electricity.
Why does salt do not conduct electricity as a solid?
Salts consist of ions: charged particles. In the solid state however, the ions are trapped in a lattice by electrostatic forces. This means that the charged particles cannot move around freely and therefore salts do not conduct electrivity in their solid state.
Why NaCl is a bad conductor of electricity in solid state but a good conductor in aqueous solution?
The charged particles (ions) in solid NaCl are unable to move. As a result they can’t conduct electricity. However, when NaCl is dissolved in water the Na+ and Cl- ions are capable to move, hence conduct electricity.
Why is salt a good conductor of electricity?
Salt molecules are made of sodium ions and chloride ions. … When you put salt in water, the water molecules pull the sodium and chlorine ions apart so they are floating freely, increasing the conductivity. These ions are what carry electricity through the water with an electric current.
Why solid nacl Cannot conduct electricity but nacl solution can?
Sodium chloride is an ionic compound having sodium and chloride ions in its structure. Ionic compounds do not conduct electricity in solid state because ions are fixed in position and cannot move but in aqueous solution and in molten state they conduct electricity as ions are free to move.
Does nacl conduct electricity in solid state?
Solid sodium chloride does not conduct electricity, because there are no electrons which are free to move. When it melts, sodium chloride undergoes electrolysis, which involves conduction of electricity because of the movement and discharge of the ions.
Why can molten salts conduct electricity?
Molten salts conduct electricity the same way they do when they are dissolved in water; some of the salt molecules are dissociated into ions, which allows the ions to conduct electricity.
Does salt dissolve electricity in water?
Some ions have a negative charge and some have a positive charge. Pure water contains very few ions, so it does not conduct electricity very well. When table salt is dissolved in water, the solution conducts very well, because the solution contains ions.
Why is melting point of nacl high?
Sodium Chloride has a high melting point, as it has a giant ionic lattice hence has strong electrostatic forces of attraction between oppositely charged ions, which requires lots of energy to overcome the forces.
Is sodium a bad conductor of electricity?
Pure sodium (Na) is a good conductor of electricity because the 3s and 3p atomic bands overlap to form partially filled conduction bands.
Which substance is a poor conductor of electricity in solid form but can conduct electricity when in aqueous solution?
Electrolytes are salts or molecules that ionize completely in solution. As a result, electrolyte solutions readily conduct electricity.
Which of the following is a poor conductor of electricity?
In option D, water being a liquid, its conductivity depends upon is dissociation into ions, but due to the low concentration of H+ and OH− ions, it is considered as a non-electrolyte and is a poor conductor of electricity. ∴ The correct option is option D, i.e. water .