Question

Define Osmosis and Reverse osmosis ?​

Answer 1

Hey there !

• Osmosis : It is defined as the passage of solvent molecules from a region of their higher concentration to a region of their lower concentration through a " Semi permeable membrane "

→ Osmosis is driven by two factors :

1. Concentration of dissolved solutes in a solution.

2. Pressure gradient

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• Reverse Osmosis : The phenomenon of reversal of the direction of osmosis by the application of a pressure larger than the osmotic pressure on the solution side is known as reverse osmosis.

→ This process is especially used for water purification.

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# Hope it helps !

Answer 2

$\huge \bold\red { Answer ↝}$

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.