Desalination of Seawater by Reverse Osmosis Requires Application of a Pressure

question 16

Multiple Choice

Desalination of seawater by reverse osmosis requires application of a pressure in excess of the solutions osmotic pressure.What is the osmotic pressure of a 5.0 g NaCl/L solution at 25 ^$\circ$ C? (assume the van't Hoff factor i = 2; R = 0.0826 L.atm/mol.K)

• A) 4.2 atm
• B) 2.1 atm
• C) 0.35 atm
• D) 250 atm
• E) 21 atm

Apply Bayes' Law to compute posterior probabilities based on given conditions and prior information.

Differentiate between prior, likelihood, and posterior probabilities.

Solve practical problems involving conditional probability, including medical diagnostics and service delivery scenarios.

Calculate the probabilities of composite events using addition and multiplication rules.

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Definitions:

Price To Earnings Ratios

A financial metric that measures a company's current share price relative to its per-share earnings, used to evaluate its relative value.

Interest Rate

The amount charged, expressed as a percentage of the principal, by a lender to a borrower for the use of assets over a specific period.

Interest Rate

The percentage of a sum of money charged for its use, commonly expressed as an annual percentage rate.

Efficient Markets Hypothesis

The theory that all available information is already reflected in asset prices, implying that stocks always trade at their fair value, making it impossible to consistently achieve higher-than-average returns.