Question

What is reverse osmosis?

Answer 1

1. When the pressure applied on the solution is greater than the osmotic pressure of the solution, the solvent starts flowing from the solution into the solvent through the semipermeable membrane. This phenomenon is termed as reverse osmosis.
2. The desalination (purification) of hard water or seawater that comes from another source is typically accomplished by reverse osmosis.
3. A diluted mixture of various unwanted salts makes up seawater. A semipermeable membrane is used to keep seawater in contact with pure water in order to purify it.
4. Reverse osmosis occurs when seawater is subjected to an external pressure higher than the osmotic pressure, causing clean water from the sea to flow into pure water collected on the opposite side of the membrane. The resulting purified water is fit for human consumption.