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The osmotic pressure (Π) of a dilute solution is given by:
AΠ = R T / C
BΠ = n R T
CΠ = m R T
DΠ = C R T
Answer & Solution
Correct answer: D. Π = C R T
**Π = C R T**, where C is molarity (mol L⁻¹), R is the gas constant and T is absolute temperature. Note the analogy to the ideal-gas equation.
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