Explain why NaCl does not conduct electricity when solid but does conduct when molten or in solution
I am revising past papers again and I am not sure if I answered this particular question correctly. Can anyone please give me their feedback. Thank you . Here is the question and my answer underneath.
[b]Explain why NaCl does not conduct electricity when solid but does conduct when molten or in solution[/b]
NaCl (common salt) is solid in state and solid ions or compounds don't conduct electricity. It needs to be either melted, molten or dissolved in a solution (i.e. water) first. This is because the electrons in a solid state won't be free to move to either the Cathode (-ve) or to the Anode (+ve). In a liquid state the electrons are free enough to move.
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