Question

Osmotic pressure of a solution containing 0.1 mole of solute per litre at $273K$ is (in atm).

• A. $\frac{0.1}{1} \times 0.08205 \times 273$
• B. $0.1 \times 1 \times 0.08205 \times 273$
• C. $\frac{1}{0.1} \times 0.08205 \times 273$
• D. $\frac{0.1}{1} \times \frac{273}{0.08205}$

Answer 1

Answer: (A)

$\frac{0.1}{1} \times 0.08205 \times 273$

Answer 2

$\pi = \frac{w}{m} \times RT = \frac{0.1}{1} \times 0.0821 \times 273$