Desalination of Seawater by Reverse Osmosis Requires Application of Pressure

question 46

Multiple Choice

Desalination of seawater by reverse osmosis requires application of pressure greater than the osmotic pressure of a 6.2 solution at 25°C? (assume the van't Hoff factor i = 2 and R = 0.0826 L⋅atm/mol⋅K)

• A) 5 atm
• B) 2.6 atm
• C) 0.44 atm
• D) 310 atm
• E) 26 atm

---

Definitions:

Sales Increase

A rise in the volume or value of product units or services sold by a company, indicating growth in business activity.

Retention Ratio

The proportion of net income that is retained in the business rather than distributed to shareholders as dividends.

Dividend Payout Ratio

A financial indicator showing the proportion of a company's profits distributed to its shareholders as dividends.

Net Income

The total profit of a company after all expenses and taxes have been subtracted from revenues. It's often referred to as the bottom line.