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Assertion: Reverse osmosis is an energy-intensive process as it requires a significant amount of pressure to overcome the osmotic pressure of the feed solution.

Reasoning: The osmotic pressure of the feed solution increases with the concentration of dissolved solids and is independent of the applied pressure.

Option: 1

Both Assertion and Reasoning are true, and Reasoning is the correct explanation of the Assertion. 


Option: 2

Both Assertion and Reasoning are true, but Reasoning is not the correct explanation of the Assertion.


Option: 3

 Assertion is true, but Reasoning is false.

 


Option: 4

 Assertion is false, but Reasoning is true.


Answers (1)

best_answer

In reverse osmosis, water molecules are forced to move from a region of high solute concentration to a region of low solute concentration through a semipermeable membrane by applying an external pressure. The osmotic pressure of the feed solution increases with the concentration of dissolved solids and is independent of the applied pressure. Therefore, to overcome the osmotic pressure and achieve reverse osmosis, a significant amount of pressure needs to be applied, making it an energy-intensive process.

 

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