This analysis evaluates the accuracy of statements concerning osmotic pressure.
Statement (A): "The osmotic pressure method is utilized for determining the molar mass of a protein."
The osmotic pressure method is suitable for determining the molar mass of macromolecules such as proteins. The governing equation is π=CRT, where π denotes osmotic pressure, C represents molarity, R is the ideal gas constant, and T is the temperature in Kelvin. Measurement of osmotic pressure allows for the calculation of molar mass, validating this statement.
Statement (B): "Osmotic pressure exhibits direct proportionality to molarity."
As indicated by the equation π=CRT, osmotic pressure is directly proportional to molarity (C). This assertion is accurate.
Statement (C): "Reverse osmosis transpires when a pressure exceeding osmotic pressure is applied to the more concentrated solution."
Reverse osmosis describes the phenomenon where applying a pressure greater than the osmotic pressure forces solvent movement from a region of higher concentration to one of lower concentration, thereby opposing the natural osmotic flow. This statement correctly defines reverse osmosis.
Statement (D): "Edema arises from osmosis-induced water retention within tissue cells."
Edema is characterized by the accumulation of fluid in tissues, frequently attributed to osmotic forces. Osmosis causes water to migrate into cells or interstitial spaces when osmotic equilibrium is disrupted. This statement is accurate.
Consequently, based on the principles of osmotic pressure, statements (A), (B), (C), and (D) are all confirmed as correct.