Question

The osmotic pressure of a solution containing $0.1$ mol of solute per litre at $273K$ is :

• A. $\frac{0.1}{1}\times 0.08205\times 273atm$
• B. $0.1\times 2\times 0.08205\times 273atm$
• C. $\frac{1}{0.1}\times 0.08205\times 273atm$
• D. $\frac{0.1}{1}\times \frac{273}{0.08205}atm$

Answer 1

The correct option is A $\frac{0.1}{1}\times 0.08205\times 273atm$

As we know,
$\pi V=nRT$;
$\therefore \pi \times 1=0.1\times 0.082\times 273$

Hence,

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