Why do they conduct electricity in molten state and not in solid state?
Yes. Ionic solids conduct electricity in a molten state but not in solids state. … In contrast, ions are held together by strong electrostatic forces in a solid-state and are not free to move about within the solid. Hence, in molten state or solution form, the ions are free to move and conduct electricity.
Why is NaCl a good conductor of electricity in solution or in their molten state?
As the motility of individual atoms or molecules in liquid state is far greater than solid, the ions (Na+&Cl−) are free to move and therefore can act as charge carriers. Hence molten sodium chloride is a good conductor of electricity because of free ions.
Why does an aqueous solution of NaCl conduct electricity?
NaCl is an electrolyte. When in solution it dissociates into Na+ and Cl-. When you put electrodes in the solution, the cations are drawn to the cathode and the anions to the anode. This movement produces a current and that is why NaCl solutions can conduct electricity.
Why is NaCl a bad conductor of electricity in solid state?
Solid [NaCl] is a bad conductor of electricity because the charged particles (ions) in solid [NaCl] are not capable of moving as they are bound by strong electrostatic forces. As a result, they can not conduct electricity. … As a result, they can not conduct electricity.
Why electricity is conduct in molten state?
Conduction of electricity
Ionic compounds conduct electricity when molten (liquid) or in aqueous solution (dissolved in water), because their ions are free to move from place to place. Ionic compounds cannot conduct electricity when solid, as their ions are held in fixed positions and cannot move.
Why can’t solid ionic substances conduct electricity?
Ionic substances will not conduct electricity as solids. This is due to the fact that ions are not free to move in a solid as they are arranged in an ionic lattice. When an ionic substance is dissolved in solution or molten the ionic lattice is broken down allowing the ions to move freely and so conduction occurs.
Why does molten NaCl undergo electrolysis while solid NaCl does not?
Electrolysis involves the movement of ions to the electrode. Solid-state does not allow the movement of ions and unsuitable for electrolysis. When melted at high temperature, sodium chloride separates into sodium and chloride ions, so that, electrolysis can take place to form sodium atom and chlorine gas.
Is NaCl a good conductor of heat or electricity?
For the ‘conduction of electricity’, the element or compound must have free moving electrons or ions. NaCl is a “good conductor of electricity” in molten state but not is solid state.
Is molten NaCl a poor conductor of electricity?
Crystalline sodium chloride is a bad conductor of electricity while molten NaCl and its aqueous solution conduct electricity. This is because. … Na+andCl- ions are free to move only in molten state or aqueous solution.
Why do aqueous solutions conduct electricity?
An aqueous solution of an acid conducts electricity because in water, an acid (HCl) dissociates to give ions. Since, the current is carried out by the movement of ions, an aqueous solution of acid conducts electricity.
Which aqueous solution would you expect to conduct electricity?
Sodium chloride is an ionic compound containing sodium cation and thus its aqueous solution ionizes completely into ions. So, it produces ions with total concentration of 0.40 M and conducts electricity.
Why an aqueous solution of sodium chloride is neutral but an aqueous solution of sodium carbonate is basic?
Aqueous solution of NaCl contains equal number of H+ and OH- ions,hence it is neutral in nature. On other hand,sodium carbonate is a salt of weak acid H₂CO₃ and strong base NaOH. … Thus salt solution contains OH- ions. Hence aqueous solution of sodium carbonate is basic in nature.