Question

define reverse osmosis​

Answer 1

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In osmosis, net flow of solvent across the semipermeable membrane is from solvent to solution. The flow can be reversed by applying pressure greater than osmotic pressure on the solution.

This is called reverse osmosis. It is used for desalination of sea water.

Answer 2

Rᴇᴠᴇʀsᴇ ᴏsᴍᴏsɪs (RO) ɪs ᴀ ᴡᴀᴛᴇʀ ᴘᴜʀɪғɪᴄᴀᴛɪᴏɴ ᴘʀᴏᴄᴇss ᴛʜᴀᴛ ᴜsᴇs ᴀ ᴘᴀʀᴛɪᴀʟʟʏ ᴘᴇʀᴍᴇᴀʙʟᴇ ᴍᴇᴍʙʀᴀɴᴇ ᴛᴏ ʀᴇᴍᴏᴠᴇ ɪᴏɴs, ᴜɴᴡᴀɴᴛᴇᴅ ᴍᴏʟᴇᴄᴜʟᴇs ᴀɴᴅ ʟᴀʀɢᴇʀ ᴘᴀʀᴛɪᴄʟᴇs ғʀᴏᴍ ᴅʀɪɴᴋɪɴɢ ᴡᴀᴛᴇʀ. ... Tʜᴇ ʀᴇsᴜʟᴛ ɪs ᴛʜᴀᴛ ᴛʜᴇ sᴏʟᴜᴛᴇ ɪs ʀᴇᴛᴀɪɴᴇᴅ ᴏɴ ᴛʜᴇ ᴘʀᴇssᴜʀɪᴢᴇᴅ sɪᴅᴇ ᴏғ ᴛʜᴇ ᴍᴇᴍʙʀᴀɴᴇ ᴀɴᴅ ᴛʜᴇ ᴘᴜʀᴇ sᴏʟᴠᴇɴᴛ ɪs ᴀʟʟᴏᴡᴇᴅ ᴛᴏ ᴘᴀss ᴛᴏ ᴛʜᴇ ᴏᴛʜᴇʀ sɪᴅᴇ.

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