solid NaCl does not conduct electricity whereas molten NaCl conducts. why?
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In order to conduct electricity a substance must have charge particles, such as electrons and ions, that are free to move through it .
In the solid state, sodium chloride have their ions fixed in position and therefore these ions cannot move. Hence , solid NaCl cannot conduct electricity.
However, in the molten state, ions in ionic compounds are free to move and therefore molten sodium chloride can conduct electricity.
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sᴏʟɪᴅ ɴᴀᴄʟ ᴅᴏᴇs ɴᴏᴛ ᴄᴏɴᴅᴜᴄᴛ ᴇʟᴇᴄᴛʀɪᴄɪᴛʏ ʙᴇᴄᴀᴜsᴇ ᴛʜᴇʀᴇ ᴀʀᴇ ɴᴏ ғʀᴇᴇ ᴇʟᴇᴄᴛʀᴏɴs ᴡʜɪᴄʜ ᴄᴀɴ ᴍᴏᴠᴇ ғʀᴇᴇʟʏ ᴛᴏ ᴄᴏɴᴅᴜᴄᴛ ᴇʟᴇᴄᴛʀɪᴄɪᴛʏ ᴡʜᴇʀᴇᴀs ᴡʜᴇɴ ɪᴛ ᴍᴇʟᴛs ɪ.ᴇ. ᴍᴏʟᴛᴇɴ ɴᴀᴄʟ ᴄᴏɴᴅᴜᴄᴛs ᴇʟᴇᴄᴛʀɪᴄɪᴛʏ ʙᴇᴄᴀᴜsᴇ ᴛʜᴇʀᴇ ᴀʀᴇ ғʀᴇᴇ ᴇʟᴇᴄᴛʀᴏɴs ᴡʜɪᴄʜ ᴍᴏᴠᴇ ғʀᴇᴇʟʏ ᴛᴏ ᴄᴏɴᴅᴜᴄᴛ ᴇʟᴇᴄᴛʀɪᴄɪᴛʏ.
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